18986849

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{1483}}^1$

素因数の和:1580

約数の個数: 16

約数和(自身を含む): 22794240

約数和(自身を除く): 3807391

約数列:

[1, 7, 31, 59, 217, 413, 1483, 1829, 10381, 12803, 45973, 87497, 321811, 612479, 2712407, 18986849]

約数ペア:

[(1, 18986849), (7, 2712407), (31, 612479), (59, 321811), (217, 87497), (413, 45973), (1483, 12803), (1829, 10381)]