30720939

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{9473}}^1$

素因数の和:9546

約数の個数: 16

約数和(自身を含む): 43656192

約数和(自身を除く): 12935253

約数列:

[1, 3, 23, 47, 69, 141, 1081, 3243, 9473, 28419, 217879, 445231, 653637, 1335693, 10240313, 30720939]

約数ペア:

[(1, 30720939), (3, 10240313), (23, 1335693), (47, 653637), (69, 445231), (141, 217879), (1081, 28419), (3243, 9473)]