18716685

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1811}}^1$

素因数の和:1885

約数の個数: 32

約数和(自身を含む): 32876928

約数和(自身を除く): 14160243

約数列:

[1, 3, 5, 13, 15, 39, 53, 65, 159, 195, 265, 689, 795, 1811, 2067, 3445, 5433, 9055, 10335, 23543, 27165, 70629, 95983, 117715, 287949, 353145, 479915, 1247779, 1439745, 3743337, 6238895, 18716685]

約数ペア:

[(1, 18716685), (3, 6238895), (5, 3743337), (13, 1439745), (15, 1247779), (39, 479915), (53, 353145), (65, 287949), (159, 117715), (195, 95983), (265, 70629), (689, 27165), (795, 23543), (1811, 10335), (2067, 9055), (3445, 5433)]