26978913

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{25621}}^1$

素因数の和:25646

約数の個数: 20

約数和(自身を含む): 43403668

約数和(自身を除く): 16424755

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 25621, 76863, 230589, 333073, 691767, 999219, 2075301, 2997657, 8992971, 26978913]

約数ペア:

[(1, 26978913), (3, 8992971), (9, 2997657), (13, 2075301), (27, 999219), (39, 691767), (81, 333073), (117, 230589), (351, 76863), (1053, 25621)]