21040408

素因数分解:

$2^3\times {\mathrm{1259}}^1\times {\mathrm{2089}}^1$

素因数の和:3354

約数の個数: 16

約数和(自身を含む): 39501000

約数和(自身を除く): 18460592

約数列:

[1, 2, 4, 8, 1259, 2089, 2518, 4178, 5036, 8356, 10072, 16712, 2630051, 5260102, 10520204, 21040408]

約数ペア:

[(1, 21040408), (2, 10520204), (4, 5260102), (8, 2630051), (1259, 16712), (2089, 10072), (2518, 8356), (4178, 5036)]