21246159

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^2\times {\mathrm{383}}^1$

素因数の和:479

約数の個数: 24

約数和(自身を含む): 31758336

約数和(自身を除く): 10512177

約数列:

[1, 3, 11, 33, 41, 123, 383, 451, 1149, 1353, 1681, 4213, 5043, 12639, 15703, 18491, 47109, 55473, 172733, 518199, 643823, 1931469, 7082053, 21246159]

約数ペア:

[(1, 21246159), (3, 7082053), (11, 1931469), (33, 643823), (41, 518199), (123, 172733), (383, 55473), (451, 47109), (1149, 18491), (1353, 15703), (1681, 12639), (4213, 5043)]