21738695

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{4441}}^1$

素因数の和:4546

約数の個数: 16

約数和(自身を含む): 28784160

約数和(自身を除く): 7045465

約数列:

[1, 5, 11, 55, 89, 445, 979, 4441, 4895, 22205, 48851, 244255, 395249, 1976245, 4347739, 21738695]

約数ペア:

[(1, 21738695), (5, 4347739), (11, 1976245), (55, 395249), (89, 244255), (445, 48851), (979, 22205), (4441, 4895)]