18954815

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{4721}}^1$

素因数の和:4810

約数の個数: 16

約数和(自身を含む): 25158816

約数和(自身を除く): 6204001

約数列:

[1, 5, 11, 55, 73, 365, 803, 4015, 4721, 23605, 51931, 259655, 344633, 1723165, 3790963, 18954815]

約数ペア:

[(1, 18954815), (5, 3790963), (11, 1723165), (55, 344633), (73, 259655), (365, 51931), (803, 23605), (4015, 4721)]