18742023

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{5381}}^1$

素因数の和:5436

約数の個数: 20

約数和(自身を含む): 28653768

約数和(自身を除く): 9911745

約数列:

[1, 3, 9, 27, 43, 81, 129, 387, 1161, 3483, 5381, 16143, 48429, 145287, 231383, 435861, 694149, 2082447, 6247341, 18742023]

約数ペア:

[(1, 18742023), (3, 6247341), (9, 2082447), (27, 694149), (43, 435861), (81, 231383), (129, 145287), (387, 48429), (1161, 16143), (3483, 5381)]