28178631

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1867}}^1$

素因数の和:1932

約数の個数: 32

約数和(自身を含む): 46027520

約数和(自身を除く): 17848889

約数列:

[1, 3, 9, 13, 27, 39, 43, 117, 129, 351, 387, 559, 1161, 1677, 1867, 5031, 5601, 15093, 16803, 24271, 50409, 72813, 80281, 218439, 240843, 655317, 722529, 1043653, 2167587, 3130959, 9392877, 28178631]

約数ペア:

[(1, 28178631), (3, 9392877), (9, 3130959), (13, 2167587), (27, 1043653), (39, 722529), (43, 655317), (117, 240843), (129, 218439), (351, 80281), (387, 72813), (559, 50409), (1161, 24271), (1677, 16803), (1867, 15093), (5031, 5601)]