19972015

素因数分解:

$5^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{3779}}^1$

素因数の和:3942

約数の個数: 16

約数和(自身を含む): 27578880

約数和(自身を除く): 7606865

約数列:

[1, 5, 7, 35, 151, 755, 1057, 3779, 5285, 18895, 26453, 132265, 570629, 2853145, 3994403, 19972015]

約数ペア:

[(1, 19972015), (5, 3994403), (7, 2853145), (35, 570629), (151, 132265), (755, 26453), (1057, 18895), (3779, 5285)]