20591389

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{5519}}^1$

素因数の和:5580

約数の個数: 16

約数和(自身を含む): 25966080

約数和(自身を除く): 5374691

約数列:

[1, 7, 13, 41, 91, 287, 533, 3731, 5519, 38633, 71747, 226279, 502229, 1583953, 2941627, 20591389]

約数ペア:

[(1, 20591389), (7, 2941627), (13, 1583953), (41, 502229), (91, 226279), (287, 71747), (533, 38633), (3731, 5519)]