21640572

素因数分解:

$2^2\times 3^2\times {\mathrm{601127}}^1$

素因数の和:601137

約数の個数: 18

約数和(自身を含む): 54702648

約数和(自身を除く): 33062076

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 601127, 1202254, 1803381, 2404508, 3606762, 5410143, 7213524, 10820286, 21640572]

約数ペア:

[(1, 21640572), (2, 10820286), (3, 7213524), (4, 5410143), (6, 3606762), (9, 2404508), (12, 1803381), (18, 1202254), (36, 601127)]