21617489

素因数分解:

${\mathrm{17}}^2\times {\mathrm{131}}^1\times {\mathrm{571}}^1$

素因数の和:736

約数の個数: 12

約数和(自身を含む): 23179728

約数和(自身を除く): 1562239

約数列:

[1, 17, 131, 289, 571, 2227, 9707, 37859, 74801, 165019, 1271617, 21617489]

約数ペア:

[(1, 21617489), (17, 1271617), (131, 165019), (289, 74801), (571, 37859), (2227, 9707)]