51215721981

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{1663}}^1\times {\mathrm{1777}}^1$

素因数の和:3605

約数の個数: 32

約数和(自身を含む): 70296145920

約数和(自身を除く): 19080423939

約数列:

[1, 3, 53, 109, 159, 327, 1663, 1777, 4989, 5331, 5777, 17331, 88139, 94181, 181267, 193693, 264417, 282543, 543801, 581079, 2955151, 8865453, 9607151, 10265729, 28821453, 30797187, 156623003, 322111459, 469869009, 966334377, 17071907327, 51215721981]

約数ペア:

[(1, 51215721981), (3, 17071907327), (53, 966334377), (109, 469869009), (159, 322111459), (327, 156623003), (1663, 30797187), (1777, 28821453), (4989, 10265729), (5331, 9607151), (5777, 8865453), (17331, 2955151), (88139, 581079), (94181, 543801), (181267, 282543), (193693, 264417)]