20161687

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1021}}^1$

素因数の和:1079

約数の個数: 24

約数和(自身を含む): 26097792

約数和(自身を除く): 5936105

約数列:

[1, 7, 13, 31, 49, 91, 217, 403, 637, 1021, 1519, 2821, 7147, 13273, 19747, 31651, 50029, 92911, 221557, 411463, 650377, 1550899, 2880241, 20161687]

約数ペア:

[(1, 20161687), (7, 2880241), (13, 1550899), (31, 650377), (49, 411463), (91, 221557), (217, 92911), (403, 50029), (637, 31651), (1021, 19747), (1519, 13273), (2821, 7147)]