20400687

素因数分解:

$3^3\times {\mathrm{101}}^1\times {\mathrm{7481}}^1$

素因数の和:7591

約数の個数: 16

約数和(自身を含む): 30526560

約数和(自身を除く): 10125873

約数列:

[1, 3, 9, 27, 101, 303, 909, 2727, 7481, 22443, 67329, 201987, 755581, 2266743, 6800229, 20400687]

約数ペア:

[(1, 20400687), (3, 6800229), (9, 2266743), (27, 755581), (101, 201987), (303, 67329), (909, 22443), (2727, 7481)]