21091313859

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{1567}}^1\times {\mathrm{5297}}^1$

素因数の和:6896

約数の個数: 48

約数和(自身を含む): 35355715584

約数和(自身を除く): 14264401725

約数列:

[1, 3, 7, 11, 21, 33, 77, 121, 231, 363, 847, 1567, 2541, 4701, 5297, 10969, 15891, 17237, 32907, 37079, 51711, 58267, 111237, 120659, 174801, 189607, 361977, 407869, 568821, 640937, 1223607, 1327249, 1922811, 3981747, 4486559, 8300399, 13459677, 24901197, 58102793, 91304389, 174308379, 273913167, 639130723, 1004348279, 1917392169, 3013044837, 7030437953, 21091313859]

約数ペア:

[(1, 21091313859), (3, 7030437953), (7, 3013044837), (11, 1917392169), (21, 1004348279), (33, 639130723), (77, 273913167), (121, 174308379), (231, 91304389), (363, 58102793), (847, 24901197), (1567, 13459677), (2541, 8300399), (4701, 4486559), (5297, 3981747), (10969, 1922811), (15891, 1327249), (17237, 1223607), (32907, 640937), (37079, 568821), (51711, 407869), (58267, 361977), (111237, 189607), (120659, 174801)]