20844945

素因数分解:

$3^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{4679}}^1$

素因数の和:4707

約数の個数: 40

約数和(自身を含む): 40772160

約数和(自身を除く): 19927215

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 81, 99, 135, 165, 297, 405, 495, 891, 1485, 4455, 4679, 14037, 23395, 42111, 51469, 70185, 126333, 154407, 210555, 257345, 378999, 463221, 631665, 772035, 1389663, 1894995, 2316105, 4168989, 6948315, 20844945]

約数ペア:

[(1, 20844945), (3, 6948315), (5, 4168989), (9, 2316105), (11, 1894995), (15, 1389663), (27, 772035), (33, 631665), (45, 463221), (55, 378999), (81, 257345), (99, 210555), (135, 154407), (165, 126333), (297, 70185), (405, 51469), (495, 42111), (891, 23395), (1485, 14037), (4455, 4679)]