20505254

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{2833}}^1$

素因数の和:2900

約数の個数: 32

約数和(自身を含む): 39177216

約数和(自身を除く): 18671962

約数列:

[1, 2, 7, 11, 14, 22, 47, 77, 94, 154, 329, 517, 658, 1034, 2833, 3619, 5666, 7238, 19831, 31163, 39662, 62326, 133151, 218141, 266302, 436282, 932057, 1464661, 1864114, 2929322, 10252627, 20505254]

約数ペア:

[(1, 20505254), (2, 10252627), (7, 2929322), (11, 1864114), (14, 1464661), (22, 932057), (47, 436282), (77, 266302), (94, 218141), (154, 133151), (329, 62326), (517, 39662), (658, 31163), (1034, 19831), (2833, 7238), (3619, 5666)]