21407048

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{205837}}^1$

素因数の和:205856

約数の個数: 16

約数和(自身を含む): 43225980

約数和(自身を除く): 21818932

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 205837, 411674, 823348, 1646696, 2675881, 5351762, 10703524, 21407048]

約数ペア:

[(1, 21407048), (2, 10703524), (4, 5351762), (8, 2675881), (13, 1646696), (26, 823348), (52, 411674), (104, 205837)]