18621999

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{1373}}^1$

素因数の和:1527

約数の個数: 24

約数和(自身を含む): 29579472

約数和(自身を除く): 10957473

約数列:

[1, 3, 9, 11, 33, 99, 137, 411, 1233, 1373, 1507, 4119, 4521, 12357, 13563, 15103, 45309, 135927, 188101, 564303, 1692909, 2069111, 6207333, 18621999]

約数ペア:

[(1, 18621999), (3, 6207333), (9, 2069111), (11, 1692909), (33, 564303), (99, 188101), (137, 135927), (411, 45309), (1233, 15103), (1373, 13563), (1507, 12357), (4119, 4521)]