20842790

素因数分解:

$2^1\times 5^1\times {\mathrm{1297}}^1\times {\mathrm{1607}}^1$

素因数の和:2911

約数の個数: 16

約数和(自身を含む): 37569312

約数和(自身を除く): 16726522

約数列:

[1, 2, 5, 10, 1297, 1607, 2594, 3214, 6485, 8035, 12970, 16070, 2084279, 4168558, 10421395, 20842790]

約数ペア:

[(1, 20842790), (2, 10421395), (5, 4168558), (10, 2084279), (1297, 16070), (1607, 12970), (2594, 8035), (3214, 6485)]