21352510

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1$

素因数の和:217

約数の個数: 64

約数和(自身を含む): 43794432

約数和(自身を除く): 22441922

約数列:

[1, 2, 5, 10, 17, 23, 34, 43, 46, 85, 86, 115, 127, 170, 215, 230, 254, 391, 430, 635, 731, 782, 989, 1270, 1462, 1955, 1978, 2159, 2921, 3655, 3910, 4318, 4945, 5461, 5842, 7310, 9890, 10795, 10922, 14605, 16813, 21590, 27305, 29210, 33626, 49657, 54610, 84065, 92837, 99314, 125603, 168130, 185674, 248285, 251206, 464185, 496570, 628015, 928370, 1256030, 2135251, 4270502, 10676255, 21352510]

約数ペア:

[(1, 21352510), (2, 10676255), (5, 4270502), (10, 2135251), (17, 1256030), (23, 928370), (34, 628015), (43, 496570), (46, 464185), (85, 251206), (86, 248285), (115, 185674), (127, 168130), (170, 125603), (215, 99314), (230, 92837), (254, 84065), (391, 54610), (430, 49657), (635, 33626), (731, 29210), (782, 27305), (989, 21590), (1270, 16813), (1462, 14605), (1955, 10922), (1978, 10795), (2159, 9890), (2921, 7310), (3655, 5842), (3910, 5461), (4318, 4945)]