20862908

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{3461}}^1$

素因数の和:3613

約数の個数: 24

約数和(自身を含む): 40131504

約数和(自身を除く): 19268596

約数列:

[1, 2, 4, 11, 22, 44, 137, 274, 548, 1507, 3014, 3461, 6028, 6922, 13844, 38071, 76142, 152284, 474157, 948314, 1896628, 5215727, 10431454, 20862908]

約数ペア:

[(1, 20862908), (2, 10431454), (4, 5215727), (11, 1896628), (22, 948314), (44, 474157), (137, 152284), (274, 76142), (548, 38071), (1507, 13844), (3014, 6922), (3461, 6028)]