20385099

素因数分解:

$3^2\times 7^1\times {\mathrm{223}}^1\times {\mathrm{1451}}^1$

素因数の和:1687

約数の個数: 24

約数和(自身を含む): 33825792

約数和(自身を除く): 13440693

約数列:

[1, 3, 7, 9, 21, 63, 223, 669, 1451, 1561, 2007, 4353, 4683, 10157, 13059, 14049, 30471, 91413, 323573, 970719, 2265011, 2912157, 6795033, 20385099]

約数ペア:

[(1, 20385099), (3, 6795033), (7, 2912157), (9, 2265011), (21, 970719), (63, 323573), (223, 91413), (669, 30471), (1451, 14049), (1561, 13059), (2007, 10157), (4353, 4683)]