18866315

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{83}}^1\times {\mathrm{269}}^1$

素因数の和:383

約数の個数: 24

約数和(自身を含む): 24902640

約数和(自身を除く): 6036325

約数列:

[1, 5, 13, 65, 83, 169, 269, 415, 845, 1079, 1345, 3497, 5395, 14027, 17485, 22327, 45461, 70135, 111635, 227305, 290251, 1451255, 3773263, 18866315]

約数ペア:

[(1, 18866315), (5, 3773263), (13, 1451255), (65, 290251), (83, 227305), (169, 111635), (269, 70135), (415, 45461), (845, 22327), (1079, 17485), (1345, 14027), (3497, 5395)]