21557790

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{239531}}^1$

素因数の和:239544

約数の個数: 24

約数和(自身を含む): 56050488

約数和(自身を除く): 34492698

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 239531, 479062, 718593, 1197655, 1437186, 2155779, 2395310, 3592965, 4311558, 7185930, 10778895, 21557790]

約数ペア:

[(1, 21557790), (2, 10778895), (3, 7185930), (5, 4311558), (6, 3592965), (9, 2395310), (10, 2155779), (15, 1437186), (18, 1197655), (30, 718593), (45, 479062), (90, 239531)]