201238972

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{415783}}^1$

素因数の和:415809

約数の個数: 18

約数和(自身を含む): 387094904

約数和(自身を除く): 185855932

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 415783, 831566, 1663132, 4573613, 9147226, 18294452, 50309743, 100619486, 201238972]

約数ペア:

[(1, 201238972), (2, 100619486), (4, 50309743), (11, 18294452), (22, 9147226), (44, 4573613), (121, 1663132), (242, 831566), (484, 415783)]