21805630

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{28319}}^1$

素因数の和:28344

約数の個数: 32

約数和(自身を含む): 48936960

約数和(自身を除く): 27131330

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770, 28319, 56638, 141595, 198233, 283190, 311509, 396466, 623018, 991165, 1557545, 1982330, 2180563, 3115090, 4361126, 10902815, 21805630]

約数ペア:

[(1, 21805630), (2, 10902815), (5, 4361126), (7, 3115090), (10, 2180563), (11, 1982330), (14, 1557545), (22, 991165), (35, 623018), (55, 396466), (70, 311509), (77, 283190), (110, 198233), (154, 141595), (385, 56638), (770, 28319)]