2645978

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{389}}^1$

素因数の和:589

約数の個数: 16

約数和(自身を含む): 4212000

約数和(自身を除く): 1566022

約数列:

[1, 2, 19, 38, 179, 358, 389, 778, 3401, 6802, 7391, 14782, 69631, 139262, 1322989, 2645978]

約数ペア:

[(1, 2645978), (2, 1322989), (19, 139262), (38, 69631), (179, 14782), (358, 7391), (389, 6802), (778, 3401)]