13238721

素因数分解:

$3^4\times {\mathrm{137}}^1\times {\mathrm{1193}}^1$

素因数の和:1342

約数の個数: 20

約数和(自身を含む): 19937412

約数和(自身を除く): 6698691

約数列:

[1, 3, 9, 27, 81, 137, 411, 1193, 1233, 3579, 3699, 10737, 11097, 32211, 96633, 163441, 490323, 1470969, 4412907, 13238721]

約数ペア:

[(1, 13238721), (3, 4412907), (9, 1470969), (27, 490323), (81, 163441), (137, 96633), (411, 32211), (1193, 11097), (1233, 10737), (3579, 3699)]