15661431

素因数分解:

$3^4\times {\mathrm{239}}^1\times {\mathrm{809}}^1$

素因数の和:1060

約数の個数: 20

約数和(自身を含む): 23522400

約数和(自身を除く): 7860969

約数列:

[1, 3, 9, 27, 81, 239, 717, 809, 2151, 2427, 6453, 7281, 19359, 21843, 65529, 193351, 580053, 1740159, 5220477, 15661431]

約数ペア:

[(1, 15661431), (3, 5220477), (9, 1740159), (27, 580053), (81, 193351), (239, 65529), (717, 21843), (809, 19359), (2151, 7281), (2427, 6453)]