20847491

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{863}}^1$

素因数の和:923

約数の個数: 24

約数和(自身を含む): 26593920

約数和(自身を除く): 5746429

約数列:

[1, 7, 17, 29, 49, 119, 203, 493, 833, 863, 1421, 3451, 6041, 14671, 24157, 25027, 42287, 102697, 175189, 425459, 718879, 1226323, 2978213, 20847491]

約数ペア:

[(1, 20847491), (7, 2978213), (17, 1226323), (29, 718879), (49, 425459), (119, 175189), (203, 102697), (493, 42287), (833, 25027), (863, 24157), (1421, 14671), (3451, 6041)]