21905712

素因数分解:

$2^4\times 3^2\times {\mathrm{152123}}^1$

素因数の和:152137

約数の個数: 30

約数和(自身を含む): 61305972

約数和(自身を除く): 39400260

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 152123, 304246, 456369, 608492, 912738, 1216984, 1369107, 1825476, 2433968, 2738214, 3650952, 5476428, 7301904, 10952856, 21905712]

約数ペア:

[(1, 21905712), (2, 10952856), (3, 7301904), (4, 5476428), (6, 3650952), (8, 2738214), (9, 2433968), (12, 1825476), (16, 1369107), (18, 1216984), (24, 912738), (36, 608492), (48, 456369), (72, 304246), (144, 152123)]