257965791

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{8713}}^1$

素因数の和:8926

約数の個数: 16

約数和(自身を含む): 351348480

約数和(自身を除く): 93382689

約数列:

[1, 3, 71, 139, 213, 417, 8713, 9869, 26139, 29607, 618623, 1211107, 1855869, 3633321, 85988597, 257965791]

約数ペア:

[(1, 257965791), (3, 85988597), (71, 3633321), (139, 1855869), (213, 1211107), (417, 618623), (8713, 29607), (9869, 26139)]