12921381

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{2777}}^1$

素因数の和:2841

約数の個数: 24

約数和(自身を含む): 20801664

約数和(自身を除く): 7880283

約数列:

[1, 3, 9, 11, 33, 47, 99, 141, 423, 517, 1551, 2777, 4653, 8331, 24993, 30547, 91641, 130519, 274923, 391557, 1174671, 1435709, 4307127, 12921381]

約数ペア:

[(1, 12921381), (3, 4307127), (9, 1435709), (11, 1174671), (33, 391557), (47, 274923), (99, 130519), (141, 91641), (423, 30547), (517, 24993), (1551, 8331), (2777, 4653)]