21165135

素因数分解:

$3^1\times 5^1\times {\mathrm{107}}^1\times {\mathrm{13187}}^1$

素因数の和:13302

約数の個数: 16

約数和(自身を含む): 34183296

約数和(自身を除く): 13018161

約数列:

[1, 3, 5, 15, 107, 321, 535, 1605, 13187, 39561, 65935, 197805, 1411009, 4233027, 7055045, 21165135]

約数ペア:

[(1, 21165135), (3, 7055045), (5, 4233027), (15, 1411009), (107, 197805), (321, 65935), (535, 39561), (1605, 13187)]