20161257207

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{173}}^1\times {\mathrm{2719}}^1$

素因数の和:3072

約数の個数: 64

約数和(自身を含む): 33500651520

約数和(自身を除く): 13339394313

約数列:

[1, 3, 7, 13, 21, 39, 91, 157, 173, 273, 471, 519, 1099, 1211, 2041, 2249, 2719, 3297, 3633, 6123, 6747, 8157, 14287, 15743, 19033, 27161, 35347, 42861, 47229, 57099, 81483, 106041, 190127, 247429, 353093, 426883, 470387, 570381, 742287, 1059279, 1280649, 1411161, 2471651, 2988181, 3292709, 5549479, 6115031, 7414953, 8964543, 9878127, 16648437, 18345093, 38846353, 42805217, 73850759, 116539059, 128415651, 221552277, 516955313, 960059867, 1550865939, 2880179601, 6720419069, 20161257207]

約数ペア:

[(1, 20161257207), (3, 6720419069), (7, 2880179601), (13, 1550865939), (21, 960059867), (39, 516955313), (91, 221552277), (157, 128415651), (173, 116539059), (273, 73850759), (471, 42805217), (519, 38846353), (1099, 18345093), (1211, 16648437), (2041, 9878127), (2249, 8964543), (2719, 7414953), (3297, 6115031), (3633, 5549479), (6123, 3292709), (6747, 2988181), (8157, 2471651), (14287, 1411161), (15743, 1280649), (19033, 1059279), (27161, 742287), (35347, 570381), (42861, 470387), (47229, 426883), (57099, 353093), (81483, 247429), (106041, 190127)]