218215621

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{491}}^1\times {\mathrm{2011}}^1$

素因数の和:2532

約数の個数: 16

約数和(自身を含む): 249455808

約数和(自身を除く): 31240187

約数列:

[1, 13, 17, 221, 491, 2011, 6383, 8347, 26143, 34187, 108511, 444431, 987401, 12836213, 16785817, 218215621]

約数ペア:

[(1, 218215621), (13, 16785817), (17, 12836213), (221, 987401), (491, 444431), (2011, 108511), (6383, 34187), (8347, 26143)]