21749620

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{14897}}^1$

素因数の和:14979

約数の個数: 24

約数和(自身を含む): 46302984

約数和(自身を除く): 24553364

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 14897, 29794, 59588, 74485, 148970, 297940, 1087481, 2174962, 4349924, 5437405, 10874810, 21749620]

約数ペア:

[(1, 21749620), (2, 10874810), (4, 5437405), (5, 4349924), (10, 2174962), (20, 1087481), (73, 297940), (146, 148970), (292, 74485), (365, 59588), (730, 29794), (1460, 14897)]