16667721

素因数分解:

$3^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{3041}}^1$

素因数の和:3086

約数の個数: 32

約数和(自身を含む): 29203200

約数和(自身を除く): 12535479

約数列:

[1, 3, 7, 9, 21, 27, 29, 63, 87, 189, 203, 261, 609, 783, 1827, 3041, 5481, 9123, 21287, 27369, 63861, 82107, 88189, 191583, 264567, 574749, 617323, 793701, 1851969, 2381103, 5555907, 16667721]

約数ペア:

[(1, 16667721), (3, 5555907), (7, 2381103), (9, 1851969), (21, 793701), (27, 617323), (29, 574749), (63, 264567), (87, 191583), (189, 88189), (203, 82107), (261, 63861), (609, 27369), (783, 21287), (1827, 9123), (3041, 5481)]