21967530

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:156

約数の個数: 128

約数和(自身を含む): 61931520

約数和(自身を除く): 39963990

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 23, 26, 30, 31, 39, 46, 62, 65, 69, 78, 79, 93, 115, 130, 138, 155, 158, 186, 195, 230, 237, 299, 310, 345, 390, 395, 403, 465, 474, 598, 690, 713, 790, 806, 897, 930, 1027, 1185, 1209, 1426, 1495, 1794, 1817, 2015, 2054, 2139, 2370, 2418, 2449, 2990, 3081, 3565, 3634, 4030, 4278, 4485, 4898, 5135, 5451, 6045, 6162, 7130, 7347, 8970, 9085, 9269, 10270, 10695, 10902, 12090, 12245, 14694, 15405, 18170, 18538, 21390, 23621, 24490, 27255, 27807, 30810, 31837, 36735, 46345, 47242, 54510, 55614, 56327, 63674, 70863, 73470, 92690, 95511, 112654, 118105, 139035, 141726, 159185, 168981, 191022, 236210, 278070, 281635, 318370, 337962, 354315, 477555, 563270, 708630, 732251, 844905, 955110, 1464502, 1689810, 2196753, 3661255, 4393506, 7322510, 10983765, 21967530]

約数ペア:

[(1, 21967530), (2, 10983765), (3, 7322510), (5, 4393506), (6, 3661255), (10, 2196753), (13, 1689810), (15, 1464502), (23, 955110), (26, 844905), (30, 732251), (31, 708630), (39, 563270), (46, 477555), (62, 354315), (65, 337962), (69, 318370), (78, 281635), (79, 278070), (93, 236210), (115, 191022), (130, 168981), (138, 159185), (155, 141726), (158, 139035), (186, 118105), (195, 112654), (230, 95511), (237, 92690), (299, 73470), (310, 70863), (345, 63674), (390, 56327), (395, 55614), (403, 54510), (465, 47242), (474, 46345), (598, 36735), (690, 31837), (713, 30810), (790, 27807), (806, 27255), (897, 24490), (930, 23621), (1027, 21390), (1185, 18538), (1209, 18170), (1426, 15405), (1495, 14694), (1794, 12245), (1817, 12090), (2015, 10902), (2054, 10695), (2139, 10270), (2370, 9269), (2418, 9085), (2449, 8970), (2990, 7347), (3081, 7130), (3565, 6162), (3634, 6045), (4030, 5451), (4278, 5135), (4485, 4898)]