28900287

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{601}}^1$

素因数の和:760

約数の個数: 32

約数和(自身を含む): 46522560

約数和(自身を除く): 17622273

約数列:

[1, 3, 9, 13, 27, 39, 117, 137, 351, 411, 601, 1233, 1781, 1803, 3699, 5343, 5409, 7813, 16029, 16227, 23439, 48087, 70317, 82337, 210951, 247011, 741033, 1070381, 2223099, 3211143, 9633429, 28900287]

約数ペア:

[(1, 28900287), (3, 9633429), (9, 3211143), (13, 2223099), (27, 1070381), (39, 741033), (117, 247011), (137, 210951), (351, 82337), (411, 70317), (601, 48087), (1233, 23439), (1781, 16227), (1803, 16029), (3699, 7813), (5343, 5409)]