21403418

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{211}}^1\times {\mathrm{757}}^1$

素因数の和:1037

約数の個数: 16

約数和(自身を含む): 32781984

約数和(自身を除く): 11378566

約数列:

[1, 2, 67, 134, 211, 422, 757, 1514, 14137, 28274, 50719, 101438, 159727, 319454, 10701709, 21403418]

約数ペア:

[(1, 21403418), (2, 10701709), (67, 319454), (134, 159727), (211, 101438), (422, 50719), (757, 28274), (1514, 14137)]