20550818

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{12577}}^1$

素因数の和:12641

約数の個数: 16

約数和(自身を含む): 33205920

約数和(自身を除く): 12655102

約数列:

[1, 2, 19, 38, 43, 86, 817, 1634, 12577, 25154, 238963, 477926, 540811, 1081622, 10275409, 20550818]

約数ペア:

[(1, 20550818), (2, 10275409), (19, 1081622), (38, 540811), (43, 477926), (86, 238963), (817, 25154), (1634, 12577)]