31311813

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{151}}^1\times {\mathrm{409}}^1$

素因数の和:589

約数の個数: 24

約数和(自身を含む): 45618240

約数和(自身を除く): 14306427

約数列:

[1, 3, 13, 39, 151, 169, 409, 453, 507, 1227, 1963, 5317, 5889, 15951, 25519, 61759, 69121, 76557, 185277, 207363, 802867, 2408601, 10437271, 31311813]

約数ペア:

[(1, 31311813), (3, 10437271), (13, 2408601), (39, 802867), (151, 207363), (169, 185277), (409, 76557), (453, 69121), (507, 61759), (1227, 25519), (1963, 15951), (5317, 5889)]