21006129

素因数分解:

$3^1\times {\mathrm{103}}^1\times {\mathrm{157}}^1\times {\mathrm{433}}^1$

素因数の和:696

約数の個数: 16

約数和(自身を含む): 28525952

約数和(自身を除く): 7519823

約数列:

[1, 3, 103, 157, 309, 433, 471, 1299, 16171, 44599, 48513, 67981, 133797, 203943, 7002043, 21006129]

約数ペア:

[(1, 21006129), (3, 7002043), (103, 203943), (157, 133797), (309, 67981), (433, 48513), (471, 44599), (1299, 16171)]