20726210

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{20521}}^1$

素因数の和:20629

約数の個数: 16

約数和(自身を含む): 37678392

約数和(自身を除く): 16952182

約数列:

[1, 2, 5, 10, 101, 202, 505, 1010, 20521, 41042, 102605, 205210, 2072621, 4145242, 10363105, 20726210]

約数ペア:

[(1, 20726210), (2, 10363105), (5, 4145242), (10, 2072621), (101, 205210), (202, 102605), (505, 41042), (1010, 20521)]