21307473

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{1571}}^1$

素因数の和:1725

約数の個数: 24

約数和(自身を含む): 33842016

約数和(自身を除く): 12534543

約数列:

[1, 3, 9, 11, 33, 99, 137, 411, 1233, 1507, 1571, 4521, 4713, 13563, 14139, 17281, 51843, 155529, 215227, 645681, 1937043, 2367497, 7102491, 21307473]

約数ペア:

[(1, 21307473), (3, 7102491), (9, 2367497), (11, 1937043), (33, 645681), (99, 215227), (137, 155529), (411, 51843), (1233, 17281), (1507, 14139), (1571, 13563), (4521, 4713)]