21303645

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{129113}}^1$

素因数の和:129132

約数の個数: 16

約数和(自身を含む): 37184832

約数和(自身を除く): 15881187

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 129113, 387339, 645565, 1420243, 1936695, 4260729, 7101215, 21303645]

約数ペア:

[(1, 21303645), (3, 7101215), (5, 4260729), (11, 1936695), (15, 1420243), (33, 645565), (55, 387339), (165, 129113)]