28223613

素因数分解:

$3^3\times {\mathrm{11}}^2\times {\mathrm{53}}^1\times {\mathrm{163}}^1$

素因数の和:247

約数の個数: 48

約数和(自身を含む): 47113920

約数和(自身を除く): 18890307

約数列:

[1, 3, 9, 11, 27, 33, 53, 99, 121, 159, 163, 297, 363, 477, 489, 583, 1089, 1431, 1467, 1749, 1793, 3267, 4401, 5247, 5379, 6413, 8639, 15741, 16137, 19239, 19723, 25917, 48411, 57717, 59169, 77751, 95029, 173151, 177507, 233253, 285087, 532521, 855261, 1045319, 2565783, 3135957, 9407871, 28223613]

約数ペア:

[(1, 28223613), (3, 9407871), (9, 3135957), (11, 2565783), (27, 1045319), (33, 855261), (53, 532521), (99, 285087), (121, 233253), (159, 177507), (163, 173151), (297, 95029), (363, 77751), (477, 59169), (489, 57717), (583, 48411), (1089, 25917), (1431, 19723), (1467, 19239), (1749, 16137), (1793, 15741), (3267, 8639), (4401, 6413), (5247, 5379)]