20966465

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{6863}}^1$

素因数の和:6928

約数の個数: 16

約数和(自身を含む): 27675648

約数和(自身を除く): 6709183

約数列:

[1, 5, 13, 47, 65, 235, 611, 3055, 6863, 34315, 89219, 322561, 446095, 1612805, 4193293, 20966465]

約数ペア:

[(1, 20966465), (5, 4193293), (13, 1612805), (47, 446095), (65, 322561), (235, 89219), (611, 34315), (3055, 6863)]