20196945

素因数分解:

$3^7\times 5^1\times {\mathrm{1847}}^1$

素因数の和:1873

約数の個数: 32

約数和(自身を含む): 36368640

約数和(自身を除く): 16171695

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 729, 1215, 1847, 2187, 3645, 5541, 9235, 10935, 16623, 27705, 49869, 83115, 149607, 249345, 448821, 748035, 1346463, 2244105, 4039389, 6732315, 20196945]

約数ペア:

[(1, 20196945), (3, 6732315), (5, 4039389), (9, 2244105), (15, 1346463), (27, 748035), (45, 448821), (81, 249345), (135, 149607), (243, 83115), (405, 49869), (729, 27705), (1215, 16623), (1847, 10935), (2187, 9235), (3645, 5541)]