21756295

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{449}}^1\times {\mathrm{881}}^1$

素因数の和:1346

約数の個数: 16

約数和(自身を含む): 28576800

約数和(自身を除く): 6820505

約数列:

[1, 5, 11, 55, 449, 881, 2245, 4405, 4939, 9691, 24695, 48455, 395569, 1977845, 4351259, 21756295]

約数ペア:

[(1, 21756295), (5, 4351259), (11, 1977845), (55, 395569), (449, 48455), (881, 24695), (2245, 9691), (4405, 4939)]