20103795

素因数分解:

$3^4\times 5^1\times {\mathrm{49639}}^1$

素因数の和:49656

約数の個数: 20

約数和(自身を含む): 36038640

約数和(自身を除く): 15934845

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 49639, 148917, 248195, 446751, 744585, 1340253, 2233755, 4020759, 6701265, 20103795]

約数ペア:

[(1, 20103795), (3, 6701265), (5, 4020759), (9, 2233755), (15, 1340253), (27, 744585), (45, 446751), (81, 248195), (135, 148917), (405, 49639)]