21411390

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1$

素因数の和:95

約数の個数: 256

約数和(自身を含む): 74317824

約数和(自身を除く): 52906434

約数列:

[1, 2, 3, 5, 6, 7, 10, 11, 13, 14, 15, 21, 22, 23, 26, 30, 31, 33, 35, 39, 42, 46, 55, 62, 65, 66, 69, 70, 77, 78, 91, 93, 105, 110, 115, 130, 138, 143, 154, 155, 161, 165, 182, 186, 195, 210, 217, 230, 231, 253, 273, 286, 299, 310, 322, 330, 341, 345, 385, 390, 403, 429, 434, 455, 462, 465, 483, 506, 546, 598, 651, 682, 690, 713, 715, 759, 770, 805, 806, 858, 897, 910, 930, 966, 1001, 1023, 1085, 1155, 1209, 1265, 1302, 1365, 1426, 1430, 1495, 1518, 1610, 1705, 1771, 1794, 2002, 2015, 2046, 2093, 2139, 2145, 2170, 2310, 2387, 2415, 2418, 2530, 2730, 2821, 2990, 3003, 3255, 3289, 3410, 3542, 3565, 3795, 4030, 4186, 4278, 4290, 4433, 4485, 4774, 4830, 4991, 5005, 5115, 5313, 5642, 6006, 6045, 6279, 6510, 6578, 7130, 7161, 7590, 7843, 8463, 8855, 8866, 8970, 9269, 9867, 9982, 10010, 10230, 10465, 10626, 10695, 11935, 12090, 12558, 13299, 14105, 14322, 14973, 15015, 15686, 16445, 16926, 17710, 18538, 19734, 20930, 21390, 22165, 23023, 23529, 23870, 24955, 26565, 26598, 27807, 28210, 29946, 30030, 31031, 31395, 32890, 35805, 39215, 42315, 44330, 46046, 46345, 47058, 49335, 49910, 53130, 54901, 55614, 62062, 62790, 64883, 66495, 69069, 71610, 74865, 78430, 84630, 92690, 93093, 98670, 101959, 109802, 115115, 117645, 129766, 132990, 138138, 139035, 149730, 155155, 164703, 186186, 194649, 203918, 230230, 235290, 274505, 278070, 305877, 310310, 324415, 329406, 345345, 389298, 465465, 509795, 549010, 611754, 648830, 690690, 713713, 823515, 930930, 973245, 1019590, 1427426, 1529385, 1647030, 1946490, 2141139, 3058770, 3568565, 4282278, 7137130, 10705695, 21411390]

約数ペア:

[(1, 21411390), (2, 10705695), (3, 7137130), (5, 4282278), (6, 3568565), (7, 3058770), (10, 2141139), (11, 1946490), (13, 1647030), (14, 1529385), (15, 1427426), (21, 1019590), (22, 973245), (23, 930930), (26, 823515), (30, 713713), (31, 690690), (33, 648830), (35, 611754), (39, 549010), (42, 509795), (46, 465465), (55, 389298), (62, 345345), (65, 329406), (66, 324415), (69, 310310), (70, 305877), (77, 278070), (78, 274505), (91, 235290), (93, 230230), (105, 203918), (110, 194649), (115, 186186), (130, 164703), (138, 155155), (143, 149730), (154, 139035), (155, 138138), (161, 132990), (165, 129766), (182, 117645), (186, 115115), (195, 109802), (210, 101959), (217, 98670), (230, 93093), (231, 92690), (253, 84630), (273, 78430), (286, 74865), (299, 71610), (310, 69069), (322, 66495), (330, 64883), (341, 62790), (345, 62062), (385, 55614), (390, 54901), (403, 53130), (429, 49910), (434, 49335), (455, 47058), (462, 46345), (465, 46046), (483, 44330), (506, 42315), (546, 39215), (598, 35805), (651, 32890), (682, 31395), (690, 31031), (713, 30030), (715, 29946), (759, 28210), (770, 27807), (805, 26598), (806, 26565), (858, 24955), (897, 23870), (910, 23529), (930, 23023), (966, 22165), (1001, 21390), (1023, 20930), (1085, 19734), (1155, 18538), (1209, 17710), (1265, 16926), (1302, 16445), (1365, 15686), (1426, 15015), (1430, 14973), (1495, 14322), (1518, 14105), (1610, 13299), (1705, 12558), (1771, 12090), (1794, 11935), (2002, 10695), (2015, 10626), (2046, 10465), (2093, 10230), (2139, 10010), (2145, 9982), (2170, 9867), (2310, 9269), (2387, 8970), (2415, 8866), (2418, 8855), (2530, 8463), (2730, 7843), (2821, 7590), (2990, 7161), (3003, 7130), (3255, 6578), (3289, 6510), (3410, 6279), (3542, 6045), (3565, 6006), (3795, 5642), (4030, 5313), (4186, 5115), (4278, 5005), (4290, 4991), (4433, 4830), (4485, 4774)]