21172769

素因数分解:

${\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{821}}^1$

素因数の和:916

約数の個数: 16

約数和(自身を含む): 23614416

約数和(自身を除く): 2441647

約数列:

[1, 17, 37, 41, 629, 697, 821, 1517, 13957, 25789, 30377, 33661, 516409, 572237, 1245457, 21172769]

約数ペア:

[(1, 21172769), (17, 1245457), (37, 572237), (41, 516409), (629, 33661), (697, 30377), (821, 25789), (1517, 13957)]