15811887

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3407}}^1$

素因数の和:3447

約数の個数: 32

約数和(自身を含む): 27482112

約数和(自身を除く): 11670225

約数列:

[1, 3, 7, 13, 17, 21, 39, 51, 91, 119, 221, 273, 357, 663, 1547, 3407, 4641, 10221, 23849, 44291, 57919, 71547, 132873, 173757, 310037, 405433, 752947, 930111, 1216299, 2258841, 5270629, 15811887]

約数ペア:

[(1, 15811887), (3, 5270629), (7, 2258841), (13, 1216299), (17, 930111), (21, 752947), (39, 405433), (51, 310037), (91, 173757), (119, 132873), (221, 71547), (273, 57919), (357, 44291), (663, 23849), (1547, 10221), (3407, 4641)]