2661278571

素因数分解:

$3^4\times 7^1\times {\mathrm{139}}^1\times {\mathrm{33767}}^1$

素因数の和:33925

約数の個数: 40

約数和(自身を含む): 4576239360

約数和(自身を除く): 1914960789

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 139, 189, 417, 567, 973, 1251, 2919, 3753, 8757, 11259, 26271, 33767, 78813, 101301, 236369, 303903, 709107, 911709, 2127321, 2735127, 4693613, 6381963, 14080839, 19145889, 32855291, 42242517, 98565873, 126727551, 295697619, 380182653, 887092857, 2661278571]

約数ペア:

[(1, 2661278571), (3, 887092857), (7, 380182653), (9, 295697619), (21, 126727551), (27, 98565873), (63, 42242517), (81, 32855291), (139, 19145889), (189, 14080839), (417, 6381963), (567, 4693613), (973, 2735127), (1251, 2127321), (2919, 911709), (3753, 709107), (8757, 303903), (11259, 236369), (26271, 101301), (33767, 78813)]