21120535

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{269}}^1\times {\mathrm{383}}^1$

素因数の和:698

約数の個数: 16

約数和(自身を含む): 26127360

約数和(自身を除く): 5006825

約数列:

[1, 5, 41, 205, 269, 383, 1345, 1915, 11029, 15703, 55145, 78515, 103027, 515135, 4224107, 21120535]

約数ペア:

[(1, 21120535), (5, 4224107), (41, 515135), (205, 103027), (269, 78515), (383, 55145), (1345, 15703), (1915, 11029)]