28219395

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{653}}^1$

素因数の和:771

約数の個数: 32

約数和(自身を含む): 46962432

約数和(自身を除く): 18743037

約数列:

[1, 3, 5, 15, 43, 67, 129, 201, 215, 335, 645, 653, 1005, 1959, 2881, 3265, 8643, 9795, 14405, 28079, 43215, 43751, 84237, 131253, 140395, 218755, 421185, 656265, 1881293, 5643879, 9406465, 28219395]

約数ペア:

[(1, 28219395), (3, 9406465), (5, 5643879), (15, 1881293), (43, 656265), (67, 421185), (129, 218755), (201, 140395), (215, 131253), (335, 84237), (645, 43751), (653, 43215), (1005, 28079), (1959, 14405), (2881, 9795), (3265, 8643)]