257240039

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{10973}}^1$

素因数の和:11194

約数の個数: 16

約数和(自身を含む): 312890688

約数和(自身を除く): 55650649

約数列:

[1, 7, 17, 119, 197, 1379, 3349, 10973, 23443, 76811, 186541, 1305787, 2161681, 15131767, 36748577, 257240039]

約数ペア:

[(1, 257240039), (7, 36748577), (17, 15131767), (119, 2161681), (197, 1305787), (1379, 186541), (3349, 76811), (10973, 23443)]