201627209

素因数分解:

$7^2\times {\mathrm{101}}^1\times {\mathrm{131}}^1\times {\mathrm{311}}^1$

素因数の和:557

約数の個数: 24

約数和(自身を含む): 239443776

約数和(自身を除く): 37816567

約数列:

[1, 7, 49, 101, 131, 311, 707, 917, 2177, 4949, 6419, 13231, 15239, 31411, 40741, 92617, 219877, 285187, 648319, 1539139, 1996309, 4114841, 28803887, 201627209]

約数ペア:

[(1, 201627209), (7, 28803887), (49, 4114841), (101, 1996309), (131, 1539139), (311, 648319), (707, 285187), (917, 219877), (2177, 92617), (4949, 40741), (6419, 31411), (13231, 15239)]