21569886513

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1\times {\mathrm{43721}}^1$

素因数の和:43966

約数の個数: 48

約数和(自身を含む): 36667717632

約数和(自身を除く): 15097831119

約数列:

[1, 3, 7, 9, 21, 41, 63, 123, 191, 287, 369, 573, 861, 1337, 1719, 2583, 4011, 7831, 12033, 23493, 43721, 54817, 70479, 131163, 164451, 306047, 393489, 493353, 918141, 1792561, 2754423, 5377683, 8350711, 12547927, 16133049, 25052133, 37643781, 58454977, 75156399, 112931343, 175364931, 342379151, 526094793, 1027137453, 2396654057, 3081412359, 7189962171, 21569886513]

約数ペア:

[(1, 21569886513), (3, 7189962171), (7, 3081412359), (9, 2396654057), (21, 1027137453), (41, 526094793), (63, 342379151), (123, 175364931), (191, 112931343), (287, 75156399), (369, 58454977), (573, 37643781), (861, 25052133), (1337, 16133049), (1719, 12547927), (2583, 8350711), (4011, 5377683), (7831, 2754423), (12033, 1792561), (23493, 918141), (43721, 493353), (54817, 393489), (70479, 306047), (131163, 164451)]