21797995

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{239}}^1$

素因数の和:327

約数の個数: 32

約数和(自身を含む): 29548800

約数和(自身を除く): 7750805

約数列:

[1, 5, 17, 29, 37, 85, 145, 185, 239, 493, 629, 1073, 1195, 2465, 3145, 4063, 5365, 6931, 8843, 18241, 20315, 34655, 44215, 91205, 117827, 150331, 256447, 589135, 751655, 1282235, 4359599, 21797995]

約数ペア:

[(1, 21797995), (5, 4359599), (17, 1282235), (29, 751655), (37, 589135), (85, 256447), (145, 150331), (185, 117827), (239, 91205), (493, 44215), (629, 34655), (1073, 20315), (1195, 18241), (2465, 8843), (3145, 6931), (4063, 5365)]