20809412

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{2879}}^1$

素因数の和:3035

約数の個数: 24

約数和(自身を含む): 39513600

約数和(自身を除く): 18704188

約数列:

[1, 2, 4, 13, 26, 52, 139, 278, 556, 1807, 2879, 3614, 5758, 7228, 11516, 37427, 74854, 149708, 400181, 800362, 1600724, 5202353, 10404706, 20809412]

約数ペア:

[(1, 20809412), (2, 10404706), (4, 5202353), (13, 1600724), (26, 800362), (52, 400181), (139, 149708), (278, 74854), (556, 37427), (1807, 11516), (2879, 7228), (3614, 5758)]