21230565

素因数分解:

$3^1\times 5^1\times {\mathrm{1163}}^1\times {\mathrm{1217}}^1$

素因数の和:2388

約数の個数: 16

約数和(自身を含む): 34026048

約数和(自身を除く): 12795483

約数列:

[1, 3, 5, 15, 1163, 1217, 3489, 3651, 5815, 6085, 17445, 18255, 1415371, 4246113, 7076855, 21230565]

約数ペア:

[(1, 21230565), (3, 7076855), (5, 4246113), (15, 1415371), (1163, 18255), (1217, 17445), (3489, 6085), (3651, 5815)]