20982470

素因数分解:

$2^1\times 5^1\times {\mathrm{197}}^1\times {\mathrm{10651}}^1$

素因数の和:10855

約数の個数: 16

約数和(自身を含む): 37963728

約数和(自身を除く): 16981258

約数列:

[1, 2, 5, 10, 197, 394, 985, 1970, 10651, 21302, 53255, 106510, 2098247, 4196494, 10491235, 20982470]

約数ペア:

[(1, 20982470), (2, 10491235), (5, 4196494), (10, 2098247), (197, 106510), (394, 53255), (985, 21302), (1970, 10651)]