21695685

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131489}}^1$

素因数の和:131508

約数の個数: 16

約数和(自身を含む): 37869120

約数和(自身を除く): 16173435

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 131489, 394467, 657445, 1446379, 1972335, 4339137, 7231895, 21695685]

約数ペア:

[(1, 21695685), (3, 7231895), (5, 4339137), (11, 1972335), (15, 1446379), (33, 657445), (55, 394467), (165, 131489)]