261691587

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{136511}}^1$

素因数の和:136591

約数の個数: 16

約数和(自身を含む): 393154560

約数和(自身を除く): 131462973

約数列:

[1, 3, 9, 27, 71, 213, 639, 1917, 136511, 409533, 1228599, 3685797, 9692281, 29076843, 87230529, 261691587]

約数ペア:

[(1, 261691587), (3, 87230529), (9, 29076843), (27, 9692281), (71, 3685797), (213, 1228599), (639, 409533), (1917, 136511)]