21246992

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{102149}}^1$

素因数の和:102170

約数の個数: 20

約数和(自身を含む): 44333100

約数和(自身を除く): 23086108

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 102149, 204298, 408596, 817192, 1327937, 1634384, 2655874, 5311748, 10623496, 21246992]

約数ペア:

[(1, 21246992), (2, 10623496), (4, 5311748), (8, 2655874), (13, 1634384), (16, 1327937), (26, 817192), (52, 408596), (104, 204298), (208, 102149)]