21955437

素因数分解:

$3^2\times 7^1\times {\mathrm{107}}^1\times {\mathrm{3257}}^1$

素因数の和:3377

約数の個数: 24

約数和(自身を含む): 36593856

約数和(自身を除く): 14638419

約数列:

[1, 3, 7, 9, 21, 63, 107, 321, 749, 963, 2247, 3257, 6741, 9771, 22799, 29313, 68397, 205191, 348499, 1045497, 2439493, 3136491, 7318479, 21955437]

約数ペア:

[(1, 21955437), (3, 7318479), (7, 3136491), (9, 2439493), (21, 1045497), (63, 348499), (107, 205191), (321, 68397), (749, 29313), (963, 22799), (2247, 9771), (3257, 6741)]