21621636

素因数分解:

$2^2\times 3^2\times {\mathrm{600601}}^1$

素因数の和:600611

約数の個数: 18

約数和(自身を含む): 54654782

約数和(自身を除く): 33033146

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 600601, 1201202, 1801803, 2402404, 3603606, 5405409, 7207212, 10810818, 21621636]

約数ペア:

[(1, 21621636), (2, 10810818), (3, 7207212), (4, 5405409), (6, 3603606), (9, 2402404), (12, 1801803), (18, 1201202), (36, 600601)]