207830781

素因数分解:

$3^2\times {\mathrm{73}}^1\times {\mathrm{137}}^1\times {\mathrm{2309}}^1$

素因数の和:2525

約数の個数: 24

約数和(自身を含む): 306666360

約数和(自身を除く): 98835579

約数列:

[1, 3, 9, 73, 137, 219, 411, 657, 1233, 2309, 6927, 10001, 20781, 30003, 90009, 168557, 316333, 505671, 948999, 1517013, 2846997, 23092309, 69276927, 207830781]

約数ペア:

[(1, 207830781), (3, 69276927), (9, 23092309), (73, 2846997), (137, 1517013), (219, 948999), (411, 505671), (657, 316333), (1233, 168557), (2309, 90009), (6927, 30003), (10001, 20781)]