21611109

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{3719}}^1$

素因数の和:3884

約数の個数: 16

約数和(自身を含む): 31248000

約数和(自身を除く): 9636891

約数列:

[1, 3, 13, 39, 149, 447, 1937, 3719, 5811, 11157, 48347, 145041, 554131, 1662393, 7203703, 21611109]

約数ペア:

[(1, 21611109), (3, 7203703), (13, 1662393), (39, 554131), (149, 145041), (447, 48347), (1937, 11157), (3719, 5811)]