20156157

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{8647}}^1$

素因数の和:8697

約数の個数: 24

約数和(自身を含む): 34176896

約数和(自身を除く): 14020739

約数列:

[1, 3, 7, 9, 21, 37, 63, 111, 259, 333, 777, 2331, 8647, 25941, 60529, 77823, 181587, 319939, 544761, 959817, 2239573, 2879451, 6718719, 20156157]

約数ペア:

[(1, 20156157), (3, 6718719), (7, 2879451), (9, 2239573), (21, 959817), (37, 544761), (63, 319939), (111, 181587), (259, 77823), (333, 60529), (777, 25941), (2331, 8647)]