20998519

素因数分解:

${\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{641}}^1$

素因数の和:746

約数の個数: 16

約数和(自身を含む): 23296896

約数和(自身を除く): 2298377

約数列:

[1, 17, 41, 47, 641, 697, 799, 1927, 10897, 26281, 30127, 32759, 446777, 512159, 1235207, 20998519]

約数ペア:

[(1, 20998519), (17, 1235207), (41, 512159), (47, 446777), (641, 32759), (697, 30127), (799, 26281), (1927, 10897)]