21061550

素因数分解:

$2^1\times 5^2\times {\mathrm{157}}^1\times {\mathrm{2683}}^1$

素因数の和:2852

約数の個数: 24

約数和(自身を含む): 39438696

約数和(自身を除く): 18377146

約数列:

[1, 2, 5, 10, 25, 50, 157, 314, 785, 1570, 2683, 3925, 5366, 7850, 13415, 26830, 67075, 134150, 421231, 842462, 2106155, 4212310, 10530775, 21061550]

約数ペア:

[(1, 21061550), (2, 10530775), (5, 4212310), (10, 2106155), (25, 842462), (50, 421231), (157, 134150), (314, 67075), (785, 26830), (1570, 13415), (2683, 7850), (3925, 5366)]