20996830

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{29573}}^1$

素因数の和:29651

約数の個数: 16

約数和(自身を含む): 38327904

約数和(自身を除く): 17331074

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 29573, 59146, 147865, 295730, 2099683, 4199366, 10498415, 20996830]

約数ペア:

[(1, 20996830), (2, 10498415), (5, 4199366), (10, 2099683), (71, 295730), (142, 147865), (355, 59146), (710, 29573)]