21152757

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{11971}}^1$

素因数の和:12024

約数の個数: 16

約数和(自身を含む): 30648320

約数和(自身を除く): 9495563

約数列:

[1, 3, 19, 31, 57, 93, 589, 1767, 11971, 35913, 227449, 371101, 682347, 1113303, 7050919, 21152757]

約数ペア:

[(1, 21152757), (3, 7050919), (19, 1113303), (31, 682347), (57, 371101), (93, 227449), (589, 35913), (1767, 11971)]