1591731

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{457}}^1$

素因数の和:512

約数の個数: 20

約数和(自身を含む): 2438392

約数和(自身を除く): 846661

約数列:

[1, 3, 9, 27, 43, 81, 129, 387, 457, 1161, 1371, 3483, 4113, 12339, 19651, 37017, 58953, 176859, 530577, 1591731]

約数ペア:

[(1, 1591731), (3, 530577), (9, 176859), (27, 58953), (43, 37017), (81, 19651), (129, 12339), (387, 4113), (457, 3483), (1161, 1371)]