71985529

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{19891}}^1$

素因数の和:19956

約数の個数: 16

約数和(自身を含む): 91662336

約数和(自身を除く): 19676807

約数列:

[1, 7, 11, 47, 77, 329, 517, 3619, 19891, 139237, 218801, 934877, 1531607, 6544139, 10283647, 71985529]

約数ペア:

[(1, 71985529), (7, 10283647), (11, 6544139), (47, 1531607), (77, 934877), (329, 218801), (517, 139237), (3619, 19891)]