20417805

素因数分解:

$3^3\times 5^1\times {\mathrm{151243}}^1$

素因数の和:151257

約数の個数: 16

約数和(自身を含む): 36298560

約数和(自身を除く): 15880755

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 151243, 453729, 756215, 1361187, 2268645, 4083561, 6805935, 20417805]

約数ペア:

[(1, 20417805), (3, 6805935), (5, 4083561), (9, 2268645), (15, 1361187), (27, 756215), (45, 453729), (135, 151243)]