19785291

素因数分解:

$3^1\times {\mathrm{83}}^1\times {\mathrm{181}}^1\times {\mathrm{439}}^1$

素因数の和:706

約数の個数: 16

約数和(自身を含む): 26906880

約数和(自身を除く): 7121589

約数列:

[1, 3, 83, 181, 249, 439, 543, 1317, 15023, 36437, 45069, 79459, 109311, 238377, 6595097, 19785291]

約数ペア:

[(1, 19785291), (3, 6595097), (83, 238377), (181, 109311), (249, 79459), (439, 45069), (543, 36437), (1317, 15023)]