21608890

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{113731}}^1$

素因数の和:113757

約数の個数: 16

約数和(自身を含む): 40943520

約数和(自身を除く): 19334630

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 113731, 227462, 568655, 1137310, 2160889, 4321778, 10804445, 21608890]

約数ペア:

[(1, 21608890), (2, 10804445), (5, 4321778), (10, 2160889), (19, 1137310), (38, 568655), (95, 227462), (190, 113731)]