18705873

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{1657}}^1$

素因数の和:1784

約数の個数: 16

約数和(自身を含む): 25785216

約数和(自身を除く): 7079343

約数列:

[1, 3, 53, 71, 159, 213, 1657, 3763, 4971, 11289, 87821, 117647, 263463, 352941, 6235291, 18705873]

約数ペア:

[(1, 18705873), (3, 6235291), (53, 352941), (71, 263463), (159, 117647), (213, 87821), (1657, 11289), (3763, 4971)]