20767565

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{3511}}^1$

素因数の和:3549

約数の個数: 24

約数和(自身を含む): 30849408

約数和(自身を除く): 10081843

約数列:

[1, 5, 7, 13, 35, 65, 91, 169, 455, 845, 1183, 3511, 5915, 17555, 24577, 45643, 122885, 228215, 319501, 593359, 1597505, 2966795, 4153513, 20767565]

約数ペア:

[(1, 20767565), (5, 4153513), (7, 2966795), (13, 1597505), (35, 593359), (65, 319501), (91, 228215), (169, 122885), (455, 45643), (845, 24577), (1183, 17555), (3511, 5915)]