21809777

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{241}}^1\times {\mathrm{433}}^1$

素因数の和:704

約数の個数: 16

約数和(自身を含む): 25206720

約数和(自身を除く): 3396943

約数列:

[1, 11, 19, 209, 241, 433, 2651, 4579, 4763, 8227, 50369, 90497, 104353, 1147883, 1982707, 21809777]

約数ペア:

[(1, 21809777), (11, 1982707), (19, 1147883), (209, 104353), (241, 90497), (433, 50369), (2651, 8227), (4579, 4763)]