21030256

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{101107}}^1$

素因数の和:101128

約数の個数: 20

約数和(自身を含む): 43880872

約数和(自身を除く): 22850616

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 101107, 202214, 404428, 808856, 1314391, 1617712, 2628782, 5257564, 10515128, 21030256]

約数ペア:

[(1, 21030256), (2, 10515128), (4, 5257564), (8, 2628782), (13, 1617712), (16, 1314391), (26, 808856), (52, 404428), (104, 202214), (208, 101107)]