21111930

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:121

約数の個数: 192

約数和(自身を含む): 69009408

約数和(自身を除く): 47897478

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 23, 30, 31, 35, 42, 45, 46, 47, 62, 63, 69, 70, 90, 93, 94, 105, 115, 126, 138, 141, 155, 161, 186, 207, 210, 217, 230, 235, 279, 282, 310, 315, 322, 329, 345, 414, 423, 434, 465, 470, 483, 558, 630, 651, 658, 690, 705, 713, 805, 846, 930, 966, 987, 1035, 1081, 1085, 1302, 1395, 1410, 1426, 1449, 1457, 1610, 1645, 1953, 1974, 2070, 2115, 2139, 2162, 2170, 2415, 2790, 2898, 2914, 2961, 3243, 3255, 3290, 3565, 3906, 4230, 4278, 4371, 4830, 4935, 4991, 5405, 5922, 6417, 6486, 6510, 7130, 7245, 7285, 7567, 8742, 9729, 9765, 9870, 9982, 10199, 10695, 10810, 12834, 13113, 14490, 14570, 14805, 14973, 15134, 16215, 19458, 19530, 20398, 21390, 21855, 22701, 24955, 26226, 29610, 29946, 30597, 32085, 32430, 33511, 37835, 43710, 44919, 45402, 48645, 49910, 50995, 61194, 64170, 65565, 67022, 68103, 74865, 75670, 89838, 91791, 97290, 100533, 101990, 113505, 131130, 136206, 149730, 152985, 167555, 183582, 201066, 224595, 227010, 234577, 301599, 305970, 335110, 340515, 449190, 458955, 469154, 502665, 603198, 681030, 703731, 917910, 1005330, 1172885, 1407462, 1507995, 2111193, 2345770, 3015990, 3518655, 4222386, 7037310, 10555965, 21111930]

約数ペア:

[(1, 21111930), (2, 10555965), (3, 7037310), (5, 4222386), (6, 3518655), (7, 3015990), (9, 2345770), (10, 2111193), (14, 1507995), (15, 1407462), (18, 1172885), (21, 1005330), (23, 917910), (30, 703731), (31, 681030), (35, 603198), (42, 502665), (45, 469154), (46, 458955), (47, 449190), (62, 340515), (63, 335110), (69, 305970), (70, 301599), (90, 234577), (93, 227010), (94, 224595), (105, 201066), (115, 183582), (126, 167555), (138, 152985), (141, 149730), (155, 136206), (161, 131130), (186, 113505), (207, 101990), (210, 100533), (217, 97290), (230, 91791), (235, 89838), (279, 75670), (282, 74865), (310, 68103), (315, 67022), (322, 65565), (329, 64170), (345, 61194), (414, 50995), (423, 49910), (434, 48645), (465, 45402), (470, 44919), (483, 43710), (558, 37835), (630, 33511), (651, 32430), (658, 32085), (690, 30597), (705, 29946), (713, 29610), (805, 26226), (846, 24955), (930, 22701), (966, 21855), (987, 21390), (1035, 20398), (1081, 19530), (1085, 19458), (1302, 16215), (1395, 15134), (1410, 14973), (1426, 14805), (1449, 14570), (1457, 14490), (1610, 13113), (1645, 12834), (1953, 10810), (1974, 10695), (2070, 10199), (2115, 9982), (2139, 9870), (2162, 9765), (2170, 9729), (2415, 8742), (2790, 7567), (2898, 7285), (2914, 7245), (2961, 7130), (3243, 6510), (3255, 6486), (3290, 6417), (3565, 5922), (3906, 5405), (4230, 4991), (4278, 4935), (4371, 4830)]