21966256

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{105607}}^1$

素因数の和:105628

約数の個数: 20

約数和(自身を含む): 45833872

約数和(自身を除く): 23867616

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 105607, 211214, 422428, 844856, 1372891, 1689712, 2745782, 5491564, 10983128, 21966256]

約数ペア:

[(1, 21966256), (2, 10983128), (4, 5491564), (8, 2745782), (13, 1689712), (16, 1372891), (26, 844856), (52, 422428), (104, 211214), (208, 105607)]