207818217

素因数分解:

$3^6\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{409}}^1$

素因数の和:485

約数の個数: 56

約数和(自身を含む): 338786280

約数和(自身を除く): 130968063

約数列:

[1, 3, 9, 17, 27, 41, 51, 81, 123, 153, 243, 369, 409, 459, 697, 729, 1107, 1227, 1377, 2091, 3321, 3681, 4131, 6273, 6953, 9963, 11043, 12393, 16769, 18819, 20859, 29889, 33129, 50307, 56457, 62577, 99387, 150921, 169371, 187731, 285073, 298161, 452763, 508113, 563193, 855219, 1358289, 1689579, 2565657, 4074867, 5068737, 7696971, 12224601, 23090913, 69272739, 207818217]

約数ペア:

[(1, 207818217), (3, 69272739), (9, 23090913), (17, 12224601), (27, 7696971), (41, 5068737), (51, 4074867), (81, 2565657), (123, 1689579), (153, 1358289), (243, 855219), (369, 563193), (409, 508113), (459, 452763), (697, 298161), (729, 285073), (1107, 187731), (1227, 169371), (1377, 150921), (2091, 99387), (3321, 62577), (3681, 56457), (4131, 50307), (6273, 33129), (6953, 29889), (9963, 20859), (11043, 18819), (12393, 16769)]