31509693

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{163}}^1\times {\mathrm{457}}^1$

素因数の和:673

約数の個数: 24

約数和(自身を含む): 46869888

約数和(自身を除く): 15360195

約数列:

[1, 3, 9, 47, 141, 163, 423, 457, 489, 1371, 1467, 4113, 7661, 21479, 22983, 64437, 68949, 74491, 193311, 223473, 670419, 3501077, 10503231, 31509693]

約数ペア:

[(1, 31509693), (3, 10503231), (9, 3501077), (47, 670419), (141, 223473), (163, 193311), (423, 74491), (457, 68949), (489, 64437), (1371, 22983), (1467, 21479), (4113, 7661)]