20887683005

素因数分解:

$5^1\times 7^3\times {\mathrm{12179407}}^1$

素因数の和:12179433

約数の個数: 16

約数和(自身を含む): 29230579200

約数和(自身を除く): 8342896195

約数列:

[1, 5, 7, 35, 49, 245, 343, 1715, 12179407, 60897035, 85255849, 426279245, 596790943, 2983954715, 4177536601, 20887683005]

約数ペア:

[(1, 20887683005), (5, 4177536601), (7, 2983954715), (35, 596790943), (49, 426279245), (245, 85255849), (343, 60897035), (1715, 12179407)]