21264485

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{6553}}^1$

素因数の和:6628

約数の個数: 16

約数和(自身を含む): 28313280

約数和(自身を除く): 7048795

約数列:

[1, 5, 11, 55, 59, 295, 649, 3245, 6553, 32765, 72083, 360415, 386627, 1933135, 4252897, 21264485]

約数ペア:

[(1, 21264485), (5, 4252897), (11, 1933135), (55, 386627), (59, 360415), (295, 72083), (649, 32765), (3245, 6553)]