311958231

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{277}}^1\times {\mathrm{431}}^1$

素因数の和:791

約数の個数: 32

約数和(自身を含む): 457325568

約数和(自身を除く): 145367337

約数列:

[1, 3, 13, 39, 67, 201, 277, 431, 831, 871, 1293, 2613, 3601, 5603, 10803, 16809, 18559, 28877, 55677, 86631, 119387, 241267, 358161, 375401, 723801, 1126203, 1552031, 4656093, 7998929, 23996787, 103986077, 311958231]

約数ペア:

[(1, 311958231), (3, 103986077), (13, 23996787), (39, 7998929), (67, 4656093), (201, 1552031), (277, 1126203), (431, 723801), (831, 375401), (871, 358161), (1293, 241267), (2613, 119387), (3601, 86631), (5603, 55677), (10803, 28877), (16809, 18559)]