21608115

素因数分解:

$3^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{13463}}^1$

素因数の和:13578

約数の個数: 16

約数和(自身を含む): 34898688

約数和(自身を除く): 13290573

約数列:

[1, 3, 5, 15, 107, 321, 535, 1605, 13463, 40389, 67315, 201945, 1440541, 4321623, 7202705, 21608115]

約数ペア:

[(1, 21608115), (3, 7202705), (5, 4321623), (15, 1440541), (107, 201945), (321, 67315), (535, 40389), (1605, 13463)]