21374877

素因数分解:

$3^1\times {\mathrm{131}}^1\times {\mathrm{137}}^1\times {\mathrm{397}}^1$

素因数の和:668

約数の個数: 16

約数和(自身を含む): 28999872

約数和(自身を除く): 7624995

約数列:

[1, 3, 131, 137, 393, 397, 411, 1191, 17947, 52007, 53841, 54389, 156021, 163167, 7124959, 21374877]

約数ペア:

[(1, 21374877), (3, 7124959), (131, 163167), (137, 156021), (393, 54389), (397, 53841), (411, 52007), (1191, 17947)]