12639879

素因数分解:

$3^2\times 7^1\times {\mathrm{313}}^1\times {\mathrm{641}}^1$

素因数の和:967

約数の個数: 24

約数和(自身を含む): 20965152

約数和(自身を除く): 8325273

約数列:

[1, 3, 7, 9, 21, 63, 313, 641, 939, 1923, 2191, 2817, 4487, 5769, 6573, 13461, 19719, 40383, 200633, 601899, 1404431, 1805697, 4213293, 12639879]

約数ペア:

[(1, 12639879), (3, 4213293), (7, 1805697), (9, 1404431), (21, 601899), (63, 200633), (313, 40383), (641, 19719), (939, 13461), (1923, 6573), (2191, 5769), (2817, 4487)]