21264903

素因数分解:

$3^3\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{283}}^1$

素因数の和:337

約数の個数: 48

約数和(自身を含む): 36261120

約数和(自身を除く): 14996217

約数列:

[1, 3, 9, 11, 23, 27, 33, 69, 99, 121, 207, 253, 283, 297, 363, 621, 759, 849, 1089, 2277, 2547, 2783, 3113, 3267, 6509, 6831, 7641, 8349, 9339, 19527, 25047, 28017, 34243, 58581, 71599, 75141, 84051, 102729, 175743, 214797, 308187, 644391, 787589, 924561, 1933173, 2362767, 7088301, 21264903]

約数ペア:

[(1, 21264903), (3, 7088301), (9, 2362767), (11, 1933173), (23, 924561), (27, 787589), (33, 644391), (69, 308187), (99, 214797), (121, 175743), (207, 102729), (253, 84051), (283, 75141), (297, 71599), (363, 58581), (621, 34243), (759, 28017), (849, 25047), (1089, 19527), (2277, 9339), (2547, 8349), (2783, 7641), (3113, 6831), (3267, 6509)]