19323005

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:221

約数の個数: 32

約数和(自身を含む): 26127360

約数和(自身を除く): 6804355

約数列:

[1, 5, 13, 53, 65, 71, 79, 265, 355, 395, 689, 923, 1027, 3445, 3763, 4187, 4615, 5135, 5609, 18815, 20935, 28045, 48919, 54431, 72917, 244595, 272155, 297277, 364585, 1486385, 3864601, 19323005]

約数ペア:

[(1, 19323005), (5, 3864601), (13, 1486385), (53, 364585), (65, 297277), (71, 272155), (79, 244595), (265, 72917), (355, 54431), (395, 48919), (689, 28045), (923, 20935), (1027, 18815), (3445, 5609), (3763, 5135), (4187, 4615)]