25719039

素因数分解:

$3^4\times {\mathrm{149}}^1\times {\mathrm{2131}}^1$

素因数の和:2292

約数の個数: 20

約数和(自身を含む): 38695800

約数和(自身を除く): 12976761

約数列:

[1, 3, 9, 27, 81, 149, 447, 1341, 2131, 4023, 6393, 12069, 19179, 57537, 172611, 317519, 952557, 2857671, 8573013, 25719039]

約数ペア:

[(1, 25719039), (3, 8573013), (9, 2857671), (27, 952557), (81, 317519), (149, 172611), (447, 57537), (1341, 19179), (2131, 12069), (4023, 6393)]