21242170

素因数分解:

$2^1\times 5^1\times {\mathrm{317}}^1\times {\mathrm{6701}}^1$

素因数の和:7025

約数の個数: 16

約数和(自身を含む): 38362248

約数和(自身を除く): 17120078

約数列:

[1, 2, 5, 10, 317, 634, 1585, 3170, 6701, 13402, 33505, 67010, 2124217, 4248434, 10621085, 21242170]

約数ペア:

[(1, 21242170), (2, 10621085), (5, 4248434), (10, 2124217), (317, 67010), (634, 33505), (1585, 13402), (3170, 6701)]