21957595

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{3533}}^1$

素因数の和:3662

約数の個数: 16

約数和(自身を含む): 29007072

約数和(自身を除く): 7049477

約数列:

[1, 5, 11, 55, 113, 565, 1243, 3533, 6215, 17665, 38863, 194315, 399229, 1996145, 4391519, 21957595]

約数ペア:

[(1, 21957595), (5, 4391519), (11, 1996145), (55, 399229), (113, 194315), (565, 38863), (1243, 17665), (3533, 6215)]