81544379

素因数分解:

$7^2\times {\mathrm{103}}^1\times {\mathrm{107}}^1\times {\mathrm{151}}^1$

素因数の和:375

約数の個数: 24

約数和(自身を含む): 97314048

約数和(自身を除く): 15769669

約数列:

[1, 7, 49, 103, 107, 151, 721, 749, 1057, 5047, 5243, 7399, 11021, 15553, 16157, 77147, 108871, 113099, 540029, 762097, 791693, 1664171, 11649197, 81544379]

約数ペア:

[(1, 81544379), (7, 11649197), (49, 1664171), (103, 791693), (107, 762097), (151, 540029), (721, 113099), (749, 108871), (1057, 77147), (5047, 16157), (5243, 15553), (7399, 11021)]