21326745

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{4457}}^1$

素因数の和:4505

約数の個数: 32

約数和(自身を含む): 38517120

約数和(自身を除く): 17190375

約数列:

[1, 3, 5, 11, 15, 29, 33, 55, 87, 145, 165, 319, 435, 957, 1595, 4457, 4785, 13371, 22285, 49027, 66855, 129253, 147081, 245135, 387759, 646265, 735405, 1421783, 1938795, 4265349, 7108915, 21326745]

約数ペア:

[(1, 21326745), (3, 7108915), (5, 4265349), (11, 1938795), (15, 1421783), (29, 735405), (33, 646265), (55, 387759), (87, 245135), (145, 147081), (165, 129253), (319, 66855), (435, 49027), (957, 22285), (1595, 13371), (4457, 4785)]