20161225161

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{421633}}^1$

素因数の和:421683

約数の個数: 64

約数和(自身を含む): 38857789440

約数和(自身を除く): 18696564279

約数列:

[1, 3, 7, 9, 11, 21, 23, 27, 33, 63, 69, 77, 99, 161, 189, 207, 231, 253, 297, 483, 621, 693, 759, 1449, 1771, 2079, 2277, 4347, 5313, 6831, 15939, 47817, 421633, 1264899, 2951431, 3794697, 4637963, 8854293, 9697559, 11384091, 13913889, 26562879, 29092677, 32465741, 41741667, 67882913, 79688637, 87278031, 97397223, 106673149, 125225001, 203648739, 261834093, 292191669, 320019447, 610946217, 746712043, 876575007, 960058341, 1832838651, 2240136129, 2880175023, 6720408387, 20161225161]

約数ペア:

[(1, 20161225161), (3, 6720408387), (7, 2880175023), (9, 2240136129), (11, 1832838651), (21, 960058341), (23, 876575007), (27, 746712043), (33, 610946217), (63, 320019447), (69, 292191669), (77, 261834093), (99, 203648739), (161, 125225001), (189, 106673149), (207, 97397223), (231, 87278031), (253, 79688637), (297, 67882913), (483, 41741667), (621, 32465741), (693, 29092677), (759, 26562879), (1449, 13913889), (1771, 11384091), (2079, 9697559), (2277, 8854293), (4347, 4637963), (5313, 3794697), (6831, 2951431), (15939, 1264899), (47817, 421633)]