21193863

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{281}}^1\times {\mathrm{811}}^1$

素因数の和:1126

約数の個数: 16

約数和(自身を含む): 29309952

約数和(自身を除く): 8116089

約数列:

[1, 3, 31, 93, 281, 811, 843, 2433, 8711, 25141, 26133, 75423, 227891, 683673, 7064621, 21193863]

約数ペア:

[(1, 21193863), (3, 7064621), (31, 683673), (93, 227891), (281, 75423), (811, 26133), (843, 25141), (2433, 8711)]