20118259

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{293}}^1\times {\mathrm{577}}^1$

素因数の和:894

約数の個数: 16

約数和(自身を含む): 24470208

約数和(自身を除く): 4351949

約数列:

[1, 7, 17, 119, 293, 577, 2051, 4039, 4981, 9809, 34867, 68663, 169061, 1183427, 2874037, 20118259]

約数ペア:

[(1, 20118259), (7, 2874037), (17, 1183427), (119, 169061), (293, 68663), (577, 34867), (2051, 9809), (4039, 4981)]