251197921

素因数分解:

${\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{367}}^1\times {\mathrm{1423}}^1$

素因数の和:1840

約数の個数: 16

約数和(自身を含む): 278785024

約数和(自身を除く): 27587103

約数列:

[1, 13, 37, 367, 481, 1423, 4771, 13579, 18499, 52651, 176527, 522241, 684463, 6789133, 19322917, 251197921]

約数ペア:

[(1, 251197921), (13, 19322917), (37, 6789133), (367, 684463), (481, 522241), (1423, 176527), (4771, 52651), (13579, 18499)]