20170846

素因数分解:

$2^1\times {\mathrm{37}}^2\times {\mathrm{53}}^1\times {\mathrm{139}}^1$

素因数の和:268

約数の個数: 24

約数和(自身を含む): 31910760

約数和(自身を除く): 11739914

約数列:

[1, 2, 37, 53, 74, 106, 139, 278, 1369, 1961, 2738, 3922, 5143, 7367, 10286, 14734, 72557, 145114, 190291, 272579, 380582, 545158, 10085423, 20170846]

約数ペア:

[(1, 20170846), (2, 10085423), (37, 545158), (53, 380582), (74, 272579), (106, 190291), (139, 145114), (278, 72557), (1369, 14734), (1961, 10286), (2738, 7367), (3922, 5143)]