19996418

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{67}}^1\times {\mathrm{883}}^1$

素因数の和:978

約数の個数: 24

約数和(自身を含む): 33001488

約数和(自身を除く): 13005070

約数列:

[1, 2, 13, 26, 67, 134, 169, 338, 871, 883, 1742, 1766, 11323, 11479, 22646, 22958, 59161, 118322, 149227, 298454, 769093, 1538186, 9998209, 19996418]

約数ペア:

[(1, 19996418), (2, 9998209), (13, 1538186), (26, 769093), (67, 298454), (134, 149227), (169, 118322), (338, 59161), (871, 22958), (883, 22646), (1742, 11479), (1766, 11323)]