20817110

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{20611}}^1$

素因数の和:20719

約数の個数: 16

約数和(自身を含む): 37843632

約数和(自身を除く): 17026522

約数列:

[1, 2, 5, 10, 101, 202, 505, 1010, 20611, 41222, 103055, 206110, 2081711, 4163422, 10408555, 20817110]

約数ペア:

[(1, 20817110), (2, 10408555), (5, 4163422), (10, 2081711), (101, 206110), (202, 103055), (505, 41222), (1010, 20611)]