393119993

素因数分解:

$7^2\times {\mathrm{137}}^1\times {\mathrm{157}}^1\times {\mathrm{373}}^1$

素因数の和:681

約数の個数: 24

約数和(自身を含む): 464817672

約数和(自身を除く): 71697679

約数列:

[1, 7, 49, 137, 157, 373, 959, 1099, 2611, 6713, 7693, 18277, 21509, 51101, 58561, 150563, 357707, 409927, 1053941, 2503949, 2869489, 8022857, 56159999, 393119993]

約数ペア:

[(1, 393119993), (7, 56159999), (49, 8022857), (137, 2869489), (157, 2503949), (373, 1053941), (959, 409927), (1099, 357707), (2611, 150563), (6713, 58561), (7693, 51101), (18277, 21509)]