420304869

素因数分解:

$3^4\times {\mathrm{67}}^1\times {\mathrm{77447}}^1$

素因数の和:77526

約数の個数: 20

約数和(自身を含む): 637242144

約数和(自身を除く): 216937275

約数列:

[1, 3, 9, 27, 67, 81, 201, 603, 1809, 5427, 77447, 232341, 697023, 2091069, 5188949, 6273207, 15566847, 46700541, 140101623, 420304869]

約数ペア:

[(1, 420304869), (3, 140101623), (9, 46700541), (27, 15566847), (67, 6273207), (81, 5188949), (201, 2091069), (603, 697023), (1809, 232341), (5427, 77447)]