21164733

素因数分解:

$3^4\times {\mathrm{41}}^1\times {\mathrm{6373}}^1$

素因数の和:6426

約数の個数: 20

約数和(自身を含む): 32392668

約数和(自身を除く): 11227935

約数列:

[1, 3, 9, 27, 41, 81, 123, 369, 1107, 3321, 6373, 19119, 57357, 172071, 261293, 516213, 783879, 2351637, 7054911, 21164733]

約数ペア:

[(1, 21164733), (3, 7054911), (9, 2351637), (27, 783879), (41, 516213), (81, 261293), (123, 172071), (369, 57357), (1107, 19119), (3321, 6373)]