21864249

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{463}}^1$

素因数の和:539

約数の個数: 40

約数和(自身を含む): 36381312

約数和(自身を除く): 14517063

約数列:

[1, 3, 9, 11, 27, 33, 53, 81, 99, 159, 297, 463, 477, 583, 891, 1389, 1431, 1749, 4167, 4293, 5093, 5247, 12501, 15279, 15741, 24539, 37503, 45837, 47223, 73617, 137511, 220851, 269929, 412533, 662553, 809787, 1987659, 2429361, 7288083, 21864249]

約数ペア:

[(1, 21864249), (3, 7288083), (9, 2429361), (11, 1987659), (27, 809787), (33, 662553), (53, 412533), (81, 269929), (99, 220851), (159, 137511), (297, 73617), (463, 47223), (477, 45837), (583, 37503), (891, 24539), (1389, 15741), (1431, 15279), (1749, 12501), (4167, 5247), (4293, 5093)]