21805685

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{449}}^1\times {\mathrm{883}}^1$

素因数の和:1348

約数の個数: 16

約数和(自身を含む): 28641600

約数和(自身を除く): 6835915

約数列:

[1, 5, 11, 55, 449, 883, 2245, 4415, 4939, 9713, 24695, 48565, 396467, 1982335, 4361137, 21805685]

約数ペア:

[(1, 21805685), (5, 4361137), (11, 1982335), (55, 396467), (449, 48565), (883, 24695), (2245, 9713), (4415, 4939)]