20163987

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{653}}^1$

素因数の和:779

約数の個数: 24

約数和(自身を含む): 30199104

約数和(自身を除く): 10035117

約数列:

[1, 3, 9, 47, 73, 141, 219, 423, 653, 657, 1959, 3431, 5877, 10293, 30691, 30879, 47669, 92073, 143007, 276219, 429021, 2240443, 6721329, 20163987]

約数ペア:

[(1, 20163987), (3, 6721329), (9, 2240443), (47, 429021), (73, 276219), (141, 143007), (219, 92073), (423, 47669), (653, 30879), (657, 30691), (1959, 10293), (3431, 5877)]