28382809

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2621}}^1$

素因数の和:2665

約数の個数: 24

約数和(自身を含む): 37662408

約数和(自身を除く): 9279599

約数列:

[1, 7, 13, 17, 49, 91, 119, 221, 637, 833, 1547, 2621, 10829, 18347, 34073, 44557, 128429, 238511, 311899, 579241, 1669577, 2183293, 4054687, 28382809]

約数ペア:

[(1, 28382809), (7, 4054687), (13, 2183293), (17, 1669577), (49, 579241), (91, 311899), (119, 238511), (221, 128429), (637, 44557), (833, 34073), (1547, 18347), (2621, 10829)]