21140877

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{3803}}^1$

素因数の和:3932

約数の個数: 16

約数和(自身を含む): 30127680

約数和(自身を除く): 8986803

約数列:

[1, 3, 17, 51, 109, 327, 1853, 3803, 5559, 11409, 64651, 193953, 414527, 1243581, 7046959, 21140877]

約数ペア:

[(1, 21140877), (3, 7046959), (17, 1243581), (51, 414527), (109, 193953), (327, 64651), (1853, 11409), (3803, 5559)]