42778617

素因数分解:

$3^1\times 7^4\times {\mathrm{5939}}^1$

素因数の和:5970

約数の個数: 20

約数和(自身を含む): 66551760

約数和(自身を除く): 23773143

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 2401, 5939, 7203, 17817, 41573, 124719, 291011, 873033, 2037077, 6111231, 14259539, 42778617]

約数ペア:

[(1, 42778617), (3, 14259539), (7, 6111231), (21, 2037077), (49, 873033), (147, 291011), (343, 124719), (1029, 41573), (2401, 17817), (5939, 7203)]