20919028

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{293}}^1\times {\mathrm{1373}}^1$

素因数の和:1683

約数の個数: 24

約数和(自身を含む): 39587688

約数和(自身を除く): 18668660

約数列:

[1, 2, 4, 13, 26, 52, 293, 586, 1172, 1373, 2746, 3809, 5492, 7618, 15236, 17849, 35698, 71396, 402289, 804578, 1609156, 5229757, 10459514, 20919028]

約数ペア:

[(1, 20919028), (2, 10459514), (4, 5229757), (13, 1609156), (26, 804578), (52, 402289), (293, 71396), (586, 35698), (1172, 17849), (1373, 15236), (2746, 7618), (3809, 5492)]