17388721

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{193}}^1\times {\mathrm{211}}^1$

素因数の和:472

約数の個数: 16

約数和(自身を含む): 20399488

約数和(自身を除く): 3010767

約数列:

[1, 7, 61, 193, 211, 427, 1351, 1477, 11773, 12871, 40723, 82411, 90097, 285061, 2484103, 17388721]

約数ペア:

[(1, 17388721), (7, 2484103), (61, 285061), (193, 90097), (211, 82411), (427, 40723), (1351, 12871), (1477, 11773)]