28431039

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{8011}}^1$

素因数の和:8047

約数の個数: 24

約数和(自身を含む): 46918272

約数和(自身を除く): 18487233

約数列:

[1, 3, 7, 13, 21, 39, 91, 169, 273, 507, 1183, 3549, 8011, 24033, 56077, 104143, 168231, 312429, 729001, 1353859, 2187003, 4061577, 9477013, 28431039]

約数ペア:

[(1, 28431039), (3, 9477013), (7, 4061577), (13, 2187003), (21, 1353859), (39, 729001), (91, 312429), (169, 168231), (273, 104143), (507, 56077), (1183, 24033), (3549, 8011)]