28722057

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{8093}}^1$

素因数の和:8129

約数の個数: 24

約数和(自身を含む): 47398464

約数和(自身を除く): 18676407

約数列:

[1, 3, 7, 13, 21, 39, 91, 169, 273, 507, 1183, 3549, 8093, 24279, 56651, 105209, 169953, 315627, 736463, 1367717, 2209389, 4103151, 9574019, 28722057]

約数ペア:

[(1, 28722057), (3, 9574019), (7, 4103151), (13, 2209389), (21, 1367717), (39, 736463), (91, 315627), (169, 169953), (273, 105209), (507, 56651), (1183, 24279), (3549, 8093)]