21834815

素因数分解:

$5^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1\times {\mathrm{353}}^1$

素因数の和:586

約数の個数: 16

約数和(自身を含む): 26762400

約数和(自身を除く): 4927585

約数列:

[1, 5, 89, 139, 353, 445, 695, 1765, 12371, 31417, 49067, 61855, 157085, 245335, 4366963, 21834815]

約数ペア:

[(1, 21834815), (5, 4366963), (89, 245335), (139, 157085), (353, 61855), (445, 49067), (695, 31417), (1765, 12371)]