31463721

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{5471}}^1$

素因数の和:5554

約数の個数: 20

約数和(自身を含む): 47672064

約数和(自身を除く): 16208343

約数列:

[1, 3, 9, 27, 71, 81, 213, 639, 1917, 5471, 5751, 16413, 49239, 147717, 388441, 443151, 1165323, 3495969, 10487907, 31463721]

約数ペア:

[(1, 31463721), (3, 10487907), (9, 3495969), (27, 1165323), (71, 443151), (81, 388441), (213, 147717), (639, 49239), (1917, 16413), (5471, 5751)]