277521979

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{12401}}^1$

素因数の和:12570

約数の個数: 16

約数和(自身を含む): 333365760

約数和(自身を除く): 55843781

約数列:

[1, 7, 23, 139, 161, 973, 3197, 12401, 22379, 86807, 285223, 1723739, 1996561, 12066173, 39645997, 277521979]

約数ペア:

[(1, 277521979), (7, 39645997), (23, 12066173), (139, 1996561), (161, 1723739), (973, 285223), (3197, 86807), (12401, 22379)]