81330494

素因数分解:

$2^1\times 7^2\times {\mathrm{353}}^1\times {\mathrm{2351}}^1$

素因数の和:2720

約数の個数: 24

約数和(自身を含む): 142375968

約数和(自身を除く): 61045474

約数列:

[1, 2, 7, 14, 49, 98, 353, 706, 2351, 2471, 4702, 4942, 16457, 17297, 32914, 34594, 115199, 230398, 829903, 1659806, 5809321, 11618642, 40665247, 81330494]

約数ペア:

[(1, 81330494), (2, 40665247), (7, 11618642), (14, 5809321), (49, 1659806), (98, 829903), (353, 230398), (706, 115199), (2351, 34594), (2471, 32914), (4702, 17297), (4942, 16457)]