21039814

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{349}}^1\times {\mathrm{701}}^1$

素因数の和:1095

約数の個数: 16

約数和(自身を含む): 32432400

約数和(自身を除く): 11392586

約数列:

[1, 2, 43, 86, 349, 698, 701, 1402, 15007, 30014, 30143, 60286, 244649, 489298, 10519907, 21039814]

約数ペア:

[(1, 21039814), (2, 10519907), (43, 489298), (86, 244649), (349, 60286), (698, 30143), (701, 30014), (1402, 15007)]