78665013

素因数分解:

$3^4\times 7^1\times {\mathrm{138739}}^1$

素因数の和:138758

約数の個数: 20

約数和(自身を含む): 134300320

約数和(自身を除く): 55635307

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 138739, 416217, 971173, 1248651, 2913519, 3745953, 8740557, 11237859, 26221671, 78665013]

約数ペア:

[(1, 78665013), (3, 26221671), (7, 11237859), (9, 8740557), (21, 3745953), (27, 2913519), (63, 1248651), (81, 971173), (189, 416217), (567, 138739)]