19885371

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{12821}}^1$

素因数の和:12882

約数の個数: 16

約数和(自身を含む): 29541888

約数和(自身を除く): 9656517

約数列:

[1, 3, 11, 33, 47, 141, 517, 1551, 12821, 38463, 141031, 423093, 602587, 1807761, 6628457, 19885371]

約数ペア:

[(1, 19885371), (3, 6628457), (11, 1807761), (33, 602587), (47, 423093), (141, 141031), (517, 38463), (1551, 12821)]