20407599

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{257}}^1$

素因数の和:456

約数の個数: 32

約数和(自身を含む): 32322240

約数和(自身を除く): 11914641

約数列:

[1, 3, 9, 17, 27, 51, 153, 173, 257, 459, 519, 771, 1557, 2313, 2941, 4369, 4671, 6939, 8823, 13107, 26469, 39321, 44461, 79407, 117963, 133383, 400149, 755837, 1200447, 2267511, 6802533, 20407599]

約数ペア:

[(1, 20407599), (3, 6802533), (9, 2267511), (17, 1200447), (27, 755837), (51, 400149), (153, 133383), (173, 117963), (257, 79407), (459, 44461), (519, 39321), (771, 26469), (1557, 13107), (2313, 8823), (2941, 6939), (4369, 4671)]