21020337

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{59887}}^1$

素因数の和:59909

約数の個数: 16

約数和(自身を含む): 33537280

約数和(自身を除く): 12516943

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 59887, 179661, 538983, 778531, 1616949, 2335593, 7006779, 21020337]

約数ペア:

[(1, 21020337), (3, 7006779), (9, 2335593), (13, 1616949), (27, 778531), (39, 538983), (117, 179661), (351, 59887)]