20898729

素因数分解:

$3^5\times {\mathrm{17}}^1\times {\mathrm{5059}}^1$

素因数の和:5091

約数の個数: 24

約数和(自身を含む): 33153120

約数和(自身を除く): 12254391

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 243, 459, 1377, 4131, 5059, 15177, 45531, 86003, 136593, 258009, 409779, 774027, 1229337, 2322081, 6966243, 20898729]

約数ペア:

[(1, 20898729), (3, 6966243), (9, 2322081), (17, 1229337), (27, 774027), (51, 409779), (81, 258009), (153, 136593), (243, 86003), (459, 45531), (1377, 15177), (4131, 5059)]