20555685

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{9719}}^1$

素因数の和:9777

約数の個数: 24

約数和(自身を含む): 36391680

約数和(自身を除く): 15835995

約数列:

[1, 3, 5, 9, 15, 45, 47, 141, 235, 423, 705, 2115, 9719, 29157, 48595, 87471, 145785, 437355, 456793, 1370379, 2283965, 4111137, 6851895, 20555685]

約数ペア:

[(1, 20555685), (3, 6851895), (5, 4111137), (9, 2283965), (15, 1370379), (45, 456793), (47, 437355), (141, 145785), (235, 87471), (423, 48595), (705, 29157), (2115, 9719)]