19249165

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:229

約数の個数: 32

約数和(自身を含む): 26078976

約数和(自身を除く): 6829811

約数列:

[1, 5, 13, 43, 65, 71, 97, 215, 355, 485, 559, 923, 1261, 2795, 3053, 4171, 4615, 6305, 6887, 15265, 20855, 34435, 39689, 54223, 89531, 198445, 271115, 296141, 447655, 1480705, 3849833, 19249165]

約数ペア:

[(1, 19249165), (5, 3849833), (13, 1480705), (43, 447655), (65, 296141), (71, 271115), (97, 198445), (215, 89531), (355, 54223), (485, 39689), (559, 34435), (923, 20855), (1261, 15265), (2795, 6887), (3053, 6305), (4171, 4615)]