21274719

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{2521}}^1$

素因数の和:2650

約数の個数: 16

約数和(自身を含む): 29658720

約数和(自身を除く): 8384001

約数列:

[1, 3, 29, 87, 97, 291, 2521, 2813, 7563, 8439, 73109, 219327, 244537, 733611, 7091573, 21274719]

約数ペア:

[(1, 21274719), (3, 7091573), (29, 733611), (87, 244537), (97, 219327), (291, 73109), (2521, 8439), (2813, 7563)]