20840157

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{3019}}^1$

素因数の和:3097

約数の個数: 24

約数和(自身を含む): 32978400

約数和(自身を除く): 12138243

約数列:

[1, 3, 9, 13, 39, 59, 117, 177, 531, 767, 2301, 3019, 6903, 9057, 27171, 39247, 117741, 178121, 353223, 534363, 1603089, 2315573, 6946719, 20840157]

約数ペア:

[(1, 20840157), (3, 6946719), (9, 2315573), (13, 1603089), (39, 534363), (59, 353223), (117, 178121), (177, 117741), (531, 39247), (767, 27171), (2301, 9057), (3019, 6903)]