19553859

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{113}}^1$

素因数の和:181

約数の個数: 64

約数和(自身を含む): 34473600

約数和(自身を除く): 14919741

約数列:

[1, 3, 9, 13, 17, 27, 29, 39, 51, 87, 113, 117, 153, 221, 261, 339, 351, 377, 459, 493, 663, 783, 1017, 1131, 1469, 1479, 1921, 1989, 3051, 3277, 3393, 4407, 4437, 5763, 5967, 6409, 9831, 10179, 13221, 13311, 17289, 19227, 24973, 29493, 39663, 42601, 51867, 55709, 57681, 74919, 88479, 127803, 167127, 173043, 224757, 383409, 501381, 674271, 724217, 1150227, 1504143, 2172651, 6517953, 19553859]

約数ペア:

[(1, 19553859), (3, 6517953), (9, 2172651), (13, 1504143), (17, 1150227), (27, 724217), (29, 674271), (39, 501381), (51, 383409), (87, 224757), (113, 173043), (117, 167127), (153, 127803), (221, 88479), (261, 74919), (339, 57681), (351, 55709), (377, 51867), (459, 42601), (493, 39663), (663, 29493), (783, 24973), (1017, 19227), (1131, 17289), (1469, 13311), (1479, 13221), (1921, 10179), (1989, 9831), (3051, 6409), (3277, 5967), (3393, 5763), (4407, 4437)]