20455245

素因数分解:

$3^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{1811}}^1$

素因数の和:2073

約数の個数: 24

約数和(自身を含む): 35616672

約数和(自身を除く): 15161427

約数列:

[1, 3, 5, 9, 15, 45, 251, 753, 1255, 1811, 2259, 3765, 5433, 9055, 11295, 16299, 27165, 81495, 454561, 1363683, 2272805, 4091049, 6818415, 20455245]

約数ペア:

[(1, 20455245), (3, 6818415), (5, 4091049), (9, 2272805), (15, 1363683), (45, 454561), (251, 81495), (753, 27165), (1255, 16299), (1811, 11295), (2259, 9055), (3765, 5433)]