26880021

素因数分解:

$3^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{3257}}^1$

素因数の和:3401

約数の個数: 24

約数和(自身を含む): 44725824

約数和(自身を除く): 17845803

約数列:

[1, 3, 7, 9, 21, 63, 131, 393, 917, 1179, 2751, 3257, 8253, 9771, 22799, 29313, 68397, 205191, 426667, 1280001, 2986669, 3840003, 8960007, 26880021]

約数ペア:

[(1, 26880021), (3, 8960007), (7, 3840003), (9, 2986669), (21, 1280001), (63, 426667), (131, 205191), (393, 68397), (917, 29313), (1179, 22799), (2751, 9771), (3257, 8253)]