21320033

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{5171}}^1$

素因数の和:5228

約数の個数: 16

約数和(自身を含む): 26480640

約数和(自身を除く): 5160607

約数列:

[1, 7, 19, 31, 133, 217, 589, 4123, 5171, 36197, 98249, 160301, 687743, 1122107, 3045719, 21320033]

約数ペア:

[(1, 21320033), (7, 3045719), (19, 1122107), (31, 687743), (133, 160301), (217, 98249), (589, 36197), (4123, 5171)]