21629225

素因数分解:

$5^2\times {\mathrm{89}}^1\times {\mathrm{9721}}^1$

素因数の和:9820

約数の個数: 12

約数和(自身を含む): 27124380

約数和(自身を除く): 5495155

約数列:

[1, 5, 25, 89, 445, 2225, 9721, 48605, 243025, 865169, 4325845, 21629225]

約数ペア:

[(1, 21629225), (5, 4325845), (25, 865169), (89, 243025), (445, 48605), (2225, 9721)]