20493465

素因数分解:

$3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{9829}}^1$

素因数の和:9976

約数の個数: 16

約数和(自身を含む): 33028800

約数和(自身を除く): 12535335

約数列:

[1, 3, 5, 15, 139, 417, 695, 2085, 9829, 29487, 49145, 147435, 1366231, 4098693, 6831155, 20493465]

約数ペア:

[(1, 20493465), (3, 6831155), (5, 4098693), (15, 1366231), (139, 147435), (417, 49145), (695, 29487), (2085, 9829)]