21302139

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{8887}}^1$

素因数の和:8954

約数の個数: 16

約数和(自身を含む): 30716928

約数和(自身を除く): 9414789

約数列:

[1, 3, 17, 47, 51, 141, 799, 2397, 8887, 26661, 151079, 417689, 453237, 1253067, 7100713, 21302139]

約数ペア:

[(1, 21302139), (3, 7100713), (17, 1253067), (47, 453237), (51, 417689), (141, 151079), (799, 26661), (2397, 8887)]