21251955

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{83341}}^1$

素因数の和:83366

約数の個数: 16

約数和(自身を含む): 36003744

約数和(自身を除く): 14751789

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 83341, 250023, 416705, 1250115, 1416797, 4250391, 7083985, 21251955]

約数ペア:

[(1, 21251955), (3, 7083985), (5, 4250391), (15, 1416797), (17, 1250115), (51, 416705), (85, 250023), (255, 83341)]