20215214936

素因数分解:

$2^3\times 7^1\times {\mathrm{661}}^1\times {\mathrm{739}}^2$

素因数の和:2152

約数の個数: 48

約数和(自身を含む): 43442637840

約数和(自身を除く): 23227422904

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 661, 739, 1322, 1478, 2644, 2956, 4627, 5173, 5288, 5912, 9254, 10346, 18508, 20692, 37016, 41384, 488479, 546121, 976958, 1092242, 1953916, 2184484, 3419353, 3822847, 3907832, 4368968, 6838706, 7645694, 13677412, 15291388, 27354824, 30582776, 360985981, 721971962, 1443943924, 2526901867, 2887887848, 5053803734, 10107607468, 20215214936]

約数ペア:

[(1, 20215214936), (2, 10107607468), (4, 5053803734), (7, 2887887848), (8, 2526901867), (14, 1443943924), (28, 721971962), (56, 360985981), (661, 30582776), (739, 27354824), (1322, 15291388), (1478, 13677412), (2644, 7645694), (2956, 6838706), (4627, 4368968), (5173, 3907832), (5288, 3822847), (5912, 3419353), (9254, 2184484), (10346, 1953916), (18508, 1092242), (20692, 976958), (37016, 546121), (41384, 488479)]