21349449

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{379}}^1\times {\mathrm{569}}^1$

素因数の和:965

約数の個数: 24

約数和(自身を含む): 33789600

約数和(自身を除く): 12440151

約数列:

[1, 3, 9, 11, 33, 99, 379, 569, 1137, 1707, 3411, 4169, 5121, 6259, 12507, 18777, 37521, 56331, 215651, 646953, 1940859, 2372161, 7116483, 21349449]

約数ペア:

[(1, 21349449), (3, 7116483), (9, 2372161), (11, 1940859), (33, 646953), (99, 215651), (379, 56331), (569, 37521), (1137, 18777), (1707, 12507), (3411, 6259), (4169, 5121)]