20187457905

素因数分解:

$3^1\times 5^1\times {\mathrm{163}}^1\times {\mathrm{8256629}}^1$

素因数の和:8256800

約数の個数: 16

約数和(自身を含む): 32498095680

約数和(自身を除く): 12310637775

約数列:

[1, 3, 5, 15, 163, 489, 815, 2445, 8256629, 24769887, 41283145, 123849435, 1345830527, 4037491581, 6729152635, 20187457905]

約数ペア:

[(1, 20187457905), (3, 6729152635), (5, 4037491581), (15, 1345830527), (163, 123849435), (489, 41283145), (815, 24769887), (2445, 8256629)]