20669957

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{331}}^1\times {\mathrm{811}}^1$

素因数の和:1160

約数の個数: 16

約数和(自身を含む): 25880064

約数和(自身を除く): 5210107

約数列:

[1, 7, 11, 77, 331, 811, 2317, 3641, 5677, 8921, 25487, 62447, 268441, 1879087, 2952851, 20669957]

約数ペア:

[(1, 20669957), (7, 2952851), (11, 1879087), (77, 268441), (331, 62447), (811, 25487), (2317, 8921), (3641, 5677)]