21553796

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{449}}^1\times {\mathrm{1091}}^1$

素因数の和:1555

約数の個数: 24

約数和(自身を含む): 41277600

約数和(自身を除く): 19723804

約数列:

[1, 2, 4, 11, 22, 44, 449, 898, 1091, 1796, 2182, 4364, 4939, 9878, 12001, 19756, 24002, 48004, 489859, 979718, 1959436, 5388449, 10776898, 21553796]

約数ペア:

[(1, 21553796), (2, 10776898), (4, 5388449), (11, 1959436), (22, 979718), (44, 489859), (449, 48004), (898, 24002), (1091, 19756), (1796, 12001), (2182, 9878), (4364, 4939)]