39968721

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{37957}}^1$

素因数の和:37982

約数の個数: 20

約数和(自身を含む): 64300852

約数和(自身を除く): 24332131

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 37957, 113871, 341613, 493441, 1024839, 1480323, 3074517, 4440969, 13322907, 39968721]

約数ペア:

[(1, 39968721), (3, 13322907), (9, 4440969), (13, 3074517), (27, 1480323), (39, 1024839), (81, 493441), (117, 341613), (351, 113871), (1053, 37957)]