20328529

素因数分解:

${\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{691}}^1$

素因数の和:808

約数の個数: 16

約数和(自身を含む): 22941184

約数和(自身を除く): 2612655

約数列:

[1, 13, 31, 73, 403, 691, 949, 2263, 8983, 21421, 29419, 50443, 278473, 655759, 1563733, 20328529]

約数ペア:

[(1, 20328529), (13, 1563733), (31, 655759), (73, 278473), (403, 50443), (691, 29419), (949, 21421), (2263, 8983)]