81331216

素因数分解:

$2^4\times {\mathrm{211}}^1\times {\mathrm{24091}}^1$

素因数の和:24310

約数の個数: 20

約数和(自身を含む): 158332624

約数和(自身を除く): 77001408

約数列:

[1, 2, 4, 8, 16, 211, 422, 844, 1688, 3376, 24091, 48182, 96364, 192728, 385456, 5083201, 10166402, 20332804, 40665608, 81331216]

約数ペア:

[(1, 81331216), (2, 40665608), (4, 20332804), (8, 10166402), (16, 5083201), (211, 385456), (422, 192728), (844, 96364), (1688, 48182), (3376, 24091)]