19788937

素因数分解:

$7^1\times {\mathrm{19}}^2\times {\mathrm{41}}^1\times {\mathrm{191}}^1$

素因数の和:277

約数の個数: 24

約数和(自身を含む): 24579072

約数和(自身を除く): 4790135

約数列:

[1, 7, 19, 41, 133, 191, 287, 361, 779, 1337, 2527, 3629, 5453, 7831, 14801, 25403, 54817, 68951, 103607, 148789, 482657, 1041523, 2826991, 19788937]

約数ペア:

[(1, 19788937), (7, 2826991), (19, 1041523), (41, 482657), (133, 148789), (191, 103607), (287, 68951), (361, 54817), (779, 25403), (1337, 14801), (2527, 7831), (3629, 5453)]