15887907

素因数分解:

$3^4\times 7^2\times {\mathrm{4003}}^1$

素因数の和:4029

約数の個数: 30

約数和(自身を含む): 27615588

約数和(自身を除く): 11727681

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 4003, 12009, 28021, 36027, 84063, 108081, 196147, 252189, 324243, 588441, 756567, 1765323, 2269701, 5295969, 15887907]

約数ペア:

[(1, 15887907), (3, 5295969), (7, 2269701), (9, 1765323), (21, 756567), (27, 588441), (49, 324243), (63, 252189), (81, 196147), (147, 108081), (189, 84063), (441, 36027), (567, 28021), (1323, 12009), (3969, 4003)]