15879969

素因数分解:

$3^4\times 7^2\times {\mathrm{4001}}^1$

素因数の和:4027

約数の個数: 30

約数和(自身を含む): 27601794

約数和(自身を除く): 11721825

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 4001, 12003, 28007, 36009, 84021, 108027, 196049, 252063, 324081, 588147, 756189, 1764441, 2268567, 5293323, 15879969]

約数ペア:

[(1, 15879969), (3, 5293323), (7, 2268567), (9, 1764441), (21, 756189), (27, 588147), (49, 324081), (63, 252063), (81, 196049), (147, 108027), (189, 84021), (441, 36009), (567, 28007), (1323, 12003), (3969, 4001)]