19888206

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{254977}}^1$

素因数の和:254995

約数の個数: 16

約数和(自身を含む): 42836304

約数和(自身を除く): 22948098

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 254977, 509954, 764931, 1529862, 3314701, 6629402, 9944103, 19888206]

約数ペア:

[(1, 19888206), (2, 9944103), (3, 6629402), (6, 3314701), (13, 1529862), (26, 764931), (39, 509954), (78, 254977)]