20641518

素因数分解:

$2^1\times 3^2\times {\mathrm{971}}^1\times {\mathrm{1181}}^1$

素因数の和:2160

約数の個数: 24

約数和(自身を含む): 44807256

約数和(自身を除く): 24165738

約数列:

[1, 2, 3, 6, 9, 18, 971, 1181, 1942, 2362, 2913, 3543, 5826, 7086, 8739, 10629, 17478, 21258, 1146751, 2293502, 3440253, 6880506, 10320759, 20641518]

約数ペア:

[(1, 20641518), (2, 10320759), (3, 6880506), (6, 3440253), (9, 2293502), (18, 1146751), (971, 21258), (1181, 17478), (1942, 10629), (2362, 8739), (2913, 7086), (3543, 5826)]