1388691

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{2707}}^1$

素因数の和:2735

約数の個数: 16

約数和(自身を含む): 2166400

約数和(自身を除く): 777709

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 2707, 8121, 24363, 51433, 73089, 154299, 462897, 1388691]

約数ペア:

[(1, 1388691), (3, 462897), (9, 154299), (19, 73089), (27, 51433), (57, 24363), (171, 8121), (513, 2707)]