207949209

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{172001}}^1$

素因数の和:172048

約数の個数: 16

約数和(自身を含む): 308227584

約数和(自身を除く): 100278375

約数列:

[1, 3, 13, 31, 39, 93, 403, 1209, 172001, 516003, 2236013, 5332031, 6708039, 15996093, 69316403, 207949209]

約数ペア:

[(1, 207949209), (3, 69316403), (13, 15996093), (31, 6708039), (39, 5332031), (93, 2236013), (403, 516003), (1209, 172001)]