21808450

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{25657}}^1$

素因数の和:25686

約数の個数: 24

約数和(自身を含む): 42951492

約数和(自身を除く): 21143042

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 85, 170, 425, 850, 25657, 51314, 128285, 256570, 436169, 641425, 872338, 1282850, 2180845, 4361690, 10904225, 21808450]

約数ペア:

[(1, 21808450), (2, 10904225), (5, 4361690), (10, 2180845), (17, 1282850), (25, 872338), (34, 641425), (50, 436169), (85, 256570), (170, 128285), (425, 51314), (850, 25657)]