21007010

素因数分解:

$2^1\times 5^1\times {\mathrm{653}}^1\times {\mathrm{3217}}^1$

素因数の和:3877

約数の個数: 16

約数和(自身を含む): 37882296

約数和(自身を除く): 16875286

約数列:

[1, 2, 5, 10, 653, 1306, 3217, 3265, 6434, 6530, 16085, 32170, 2100701, 4201402, 10503505, 21007010]

約数ペア:

[(1, 21007010), (2, 10503505), (5, 4201402), (10, 2100701), (653, 32170), (1306, 16085), (3217, 6530), (3265, 6434)]