20948499

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{397}}^1$

素因数の和:468

約数の個数: 48

約数和(自身を含む): 36507744

約数和(自身を除く): 15559245

約数列:

[1, 3, 9, 11, 13, 33, 39, 41, 99, 117, 123, 143, 369, 397, 429, 451, 533, 1191, 1287, 1353, 1599, 3573, 4059, 4367, 4797, 5161, 5863, 13101, 15483, 16277, 17589, 39303, 46449, 48831, 52767, 56771, 146493, 170313, 179047, 211601, 510939, 537141, 634803, 1611423, 1904409, 2327611, 6982833, 20948499]

約数ペア:

[(1, 20948499), (3, 6982833), (9, 2327611), (11, 1904409), (13, 1611423), (33, 634803), (39, 537141), (41, 510939), (99, 211601), (117, 179047), (123, 170313), (143, 146493), (369, 56771), (397, 52767), (429, 48831), (451, 46449), (533, 39303), (1191, 17589), (1287, 16277), (1353, 15483), (1599, 13101), (3573, 5863), (4059, 5161), (4367, 4797)]