21985989

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{211}}^1\times {\mathrm{739}}^1$

素因数の和:1000

約数の個数: 16

約数和(自身を含む): 30120960

約数和(自身を除く): 8134971

約数列:

[1, 3, 47, 141, 211, 633, 739, 2217, 9917, 29751, 34733, 104199, 155929, 467787, 7328663, 21985989]

約数ペア:

[(1, 21985989), (3, 7328663), (47, 467787), (141, 155929), (211, 104199), (633, 34733), (739, 29751), (2217, 9917)]