21937795

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{569}}^1\times {\mathrm{701}}^1$

素因数の和:1286

約数の個数: 16

約数和(自身を含む): 28810080

約数和(自身を除く): 6872285

約数列:

[1, 5, 11, 55, 569, 701, 2845, 3505, 6259, 7711, 31295, 38555, 398869, 1994345, 4387559, 21937795]

約数ペア:

[(1, 21937795), (5, 4387559), (11, 1994345), (55, 398869), (569, 38555), (701, 31295), (2845, 7711), (3505, 6259)]