21172039

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{2269}}^1$

素因数の和:2350

約数の個数: 16

約数和(自身を含む): 25569280

約数和(自身を除く): 4397241

約数列:

[1, 7, 31, 43, 217, 301, 1333, 2269, 9331, 15883, 70339, 97567, 492373, 682969, 3024577, 21172039]

約数ペア:

[(1, 21172039), (7, 3024577), (31, 682969), (43, 492373), (217, 97567), (301, 70339), (1333, 15883), (2269, 9331)]