2787309

素因数分解:

$3^2\times 7^1\times {\mathrm{151}}^1\times {\mathrm{293}}^1$

素因数の和:457

約数の個数: 24

約数和(自身を含む): 4647552

約数和(自身を除く): 1860243

約数列:

[1, 3, 7, 9, 21, 63, 151, 293, 453, 879, 1057, 1359, 2051, 2637, 3171, 6153, 9513, 18459, 44243, 132729, 309701, 398187, 929103, 2787309]

約数ペア:

[(1, 2787309), (3, 929103), (7, 398187), (9, 309701), (21, 132729), (63, 44243), (151, 18459), (293, 9513), (453, 6153), (879, 3171), (1057, 2637), (1359, 2051)]