15331978

素因数分解:

$2^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1\times {\mathrm{421}}^1$

素因数の和:693

約数の個数: 16

約数和(自身を含む): 23395680

約数和(自身を除く): 8063702

約数列:

[1, 2, 131, 139, 262, 278, 421, 842, 18209, 36418, 55151, 58519, 110302, 117038, 7665989, 15331978]

約数ペア:

[(1, 15331978), (2, 7665989), (131, 117038), (139, 110302), (262, 58519), (278, 55151), (421, 36418), (842, 18209)]