21285810

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1$

素因数の和:169

約数の個数: 192

約数和(自身を含む): 71705088

約数和(自身を除く): 50419278

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 13, 14, 15, 18, 21, 23, 26, 30, 35, 39, 42, 45, 46, 63, 65, 69, 70, 78, 90, 91, 105, 113, 115, 117, 126, 130, 138, 161, 182, 195, 207, 210, 226, 230, 234, 273, 299, 315, 322, 339, 345, 390, 414, 455, 483, 546, 565, 585, 598, 630, 678, 690, 791, 805, 819, 897, 910, 966, 1017, 1035, 1130, 1170, 1365, 1449, 1469, 1495, 1582, 1610, 1638, 1695, 1794, 2034, 2070, 2093, 2373, 2415, 2599, 2691, 2730, 2898, 2938, 2990, 3390, 3955, 4095, 4186, 4407, 4485, 4746, 4830, 5085, 5198, 5382, 6279, 7119, 7245, 7345, 7797, 7910, 8190, 8814, 8970, 10170, 10283, 10465, 11865, 12558, 12995, 13221, 13455, 14238, 14490, 14690, 15594, 18193, 18837, 20566, 20930, 22035, 23391, 23730, 25990, 26442, 26910, 30849, 31395, 33787, 35595, 36386, 37674, 38985, 44070, 46782, 51415, 54579, 61698, 62790, 66105, 67574, 71190, 77970, 90965, 92547, 94185, 101361, 102830, 109158, 116955, 132210, 154245, 163737, 168935, 181930, 185094, 188370, 202722, 233910, 236509, 272895, 304083, 308490, 327474, 337870, 462735, 473018, 506805, 545790, 608166, 709527, 818685, 925470, 1013610, 1182545, 1419054, 1520415, 1637370, 2128581, 2365090, 3040830, 3547635, 4257162, 7095270, 10642905, 21285810]

約数ペア:

[(1, 21285810), (2, 10642905), (3, 7095270), (5, 4257162), (6, 3547635), (7, 3040830), (9, 2365090), (10, 2128581), (13, 1637370), (14, 1520415), (15, 1419054), (18, 1182545), (21, 1013610), (23, 925470), (26, 818685), (30, 709527), (35, 608166), (39, 545790), (42, 506805), (45, 473018), (46, 462735), (63, 337870), (65, 327474), (69, 308490), (70, 304083), (78, 272895), (90, 236509), (91, 233910), (105, 202722), (113, 188370), (115, 185094), (117, 181930), (126, 168935), (130, 163737), (138, 154245), (161, 132210), (182, 116955), (195, 109158), (207, 102830), (210, 101361), (226, 94185), (230, 92547), (234, 90965), (273, 77970), (299, 71190), (315, 67574), (322, 66105), (339, 62790), (345, 61698), (390, 54579), (414, 51415), (455, 46782), (483, 44070), (546, 38985), (565, 37674), (585, 36386), (598, 35595), (630, 33787), (678, 31395), (690, 30849), (791, 26910), (805, 26442), (819, 25990), (897, 23730), (910, 23391), (966, 22035), (1017, 20930), (1035, 20566), (1130, 18837), (1170, 18193), (1365, 15594), (1449, 14690), (1469, 14490), (1495, 14238), (1582, 13455), (1610, 13221), (1638, 12995), (1695, 12558), (1794, 11865), (2034, 10465), (2070, 10283), (2093, 10170), (2373, 8970), (2415, 8814), (2599, 8190), (2691, 7910), (2730, 7797), (2898, 7345), (2938, 7245), (2990, 7119), (3390, 6279), (3955, 5382), (4095, 5198), (4186, 5085), (4407, 4830), (4485, 4746)]