18919953

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2837}}^1$

素因数の和:2878

約数の個数: 32

約数和(自身を含む): 31785600

約数和(自身を除く): 12865647

約数列:

[1, 3, 9, 13, 19, 27, 39, 57, 117, 171, 247, 351, 513, 741, 2223, 2837, 6669, 8511, 25533, 36881, 53903, 76599, 110643, 161709, 331929, 485127, 700739, 995787, 1455381, 2102217, 6306651, 18919953]

約数ペア:

[(1, 18919953), (3, 6306651), (9, 2102217), (13, 1455381), (19, 995787), (27, 700739), (39, 485127), (57, 331929), (117, 161709), (171, 110643), (247, 76599), (351, 53903), (513, 36881), (741, 25533), (2223, 8511), (2837, 6669)]