17640423

素因数分解:

$3^4\times {\mathrm{89}}^1\times {\mathrm{2447}}^1$

素因数の和:2548

約数の個数: 20

約数和(自身を含む): 26658720

約数和(自身を除く): 9018297

約数列:

[1, 3, 9, 27, 81, 89, 267, 801, 2403, 2447, 7209, 7341, 22023, 66069, 198207, 217783, 653349, 1960047, 5880141, 17640423]

約数ペア:

[(1, 17640423), (3, 5880141), (9, 1960047), (27, 653349), (81, 217783), (89, 198207), (267, 66069), (801, 22023), (2403, 7341), (2447, 7209)]