20713368

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{337}}^1$

素因数の和:556

約数の個数: 64

約数和(自身を含む): 56216160

約数和(自身を除く): 35502792

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 197, 312, 337, 394, 591, 674, 788, 1011, 1182, 1348, 1576, 2022, 2364, 2561, 2696, 4044, 4381, 4728, 5122, 7683, 8088, 8762, 10244, 13143, 15366, 17524, 20488, 26286, 30732, 35048, 52572, 61464, 66389, 105144, 132778, 199167, 265556, 398334, 531112, 796668, 863057, 1593336, 1726114, 2589171, 3452228, 5178342, 6904456, 10356684, 20713368]

約数ペア:

[(1, 20713368), (2, 10356684), (3, 6904456), (4, 5178342), (6, 3452228), (8, 2589171), (12, 1726114), (13, 1593336), (24, 863057), (26, 796668), (39, 531112), (52, 398334), (78, 265556), (104, 199167), (156, 132778), (197, 105144), (312, 66389), (337, 61464), (394, 52572), (591, 35048), (674, 30732), (788, 26286), (1011, 20488), (1182, 17524), (1348, 15366), (1576, 13143), (2022, 10244), (2364, 8762), (2561, 8088), (2696, 7683), (4044, 5122), (4381, 4728)]