20207745

素因数分解:

$3^3\times 5^1\times {\mathrm{181}}^1\times {\mathrm{827}}^1$

素因数の和:1022

約数の個数: 32

約数和(自身を含む): 36167040

約数和(自身を除く): 15959295

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 181, 543, 827, 905, 1629, 2481, 2715, 4135, 4887, 7443, 8145, 12405, 22329, 24435, 37215, 111645, 149687, 449061, 748435, 1347183, 2245305, 4041549, 6735915, 20207745]

約数ペア:

[(1, 20207745), (3, 6735915), (5, 4041549), (9, 2245305), (15, 1347183), (27, 748435), (45, 449061), (135, 149687), (181, 111645), (543, 37215), (827, 24435), (905, 22329), (1629, 12405), (2481, 8145), (2715, 7443), (4135, 4887)]