28487907

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^2\times {\mathrm{269}}^1$

素因数の和:364

約数の個数: 36

約数和(自身を含む): 48381840

約数和(自身を除く): 19893933

約数列:

[1, 3, 7, 9, 21, 41, 63, 123, 269, 287, 369, 807, 861, 1681, 1883, 2421, 2583, 5043, 5649, 11029, 11767, 15129, 16947, 33087, 35301, 77203, 99261, 105903, 231609, 452189, 694827, 1356567, 3165323, 4069701, 9495969, 28487907]

約数ペア:

[(1, 28487907), (3, 9495969), (7, 4069701), (9, 3165323), (21, 1356567), (41, 694827), (63, 452189), (123, 231609), (269, 105903), (287, 99261), (369, 77203), (807, 35301), (861, 33087), (1681, 16947), (1883, 15129), (2421, 11767), (2583, 11029), (5043, 5649)]