20216287

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{743}}^1$

素因数の和:799

約数の個数: 24

約数和(自身を含む): 26141184

約数和(自身を除く): 5924897

約数列:

[1, 7, 13, 23, 91, 161, 169, 299, 743, 1183, 2093, 3887, 5201, 9659, 17089, 27209, 67613, 119623, 125567, 222157, 878969, 1555099, 2888041, 20216287]

約数ペア:

[(1, 20216287), (7, 2888041), (13, 1555099), (23, 878969), (91, 222157), (161, 125567), (169, 119623), (299, 67613), (743, 27209), (1183, 17089), (2093, 9659), (3887, 5201)]