21655730

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{547}}^1$

素因数の和:698

約数の個数: 32

約数和(自身を含む): 40481856

約数和(自身を除く): 18826126

約数列:

[1, 2, 5, 10, 37, 74, 107, 185, 214, 370, 535, 547, 1070, 1094, 2735, 3959, 5470, 7918, 19795, 20239, 39590, 40478, 58529, 101195, 117058, 202390, 292645, 585290, 2165573, 4331146, 10827865, 21655730]

約数ペア:

[(1, 21655730), (2, 10827865), (5, 4331146), (10, 2165573), (37, 585290), (74, 292645), (107, 202390), (185, 117058), (214, 101195), (370, 58529), (535, 40478), (547, 39590), (1070, 20239), (1094, 19795), (2735, 7918), (3959, 5470)]