64945719

素因数分解:

$3^4\times {\mathrm{157}}^1\times {\mathrm{5107}}^1$

素因数の和:5276

約数の個数: 20

約数和(自身を含む): 97654744

約数和(自身を除く): 32709025

約数列:

[1, 3, 9, 27, 81, 157, 471, 1413, 4239, 5107, 12717, 15321, 45963, 137889, 413667, 801799, 2405397, 7216191, 21648573, 64945719]

約数ペア:

[(1, 64945719), (3, 21648573), (9, 7216191), (27, 2405397), (81, 801799), (157, 413667), (471, 137889), (1413, 45963), (4239, 15321), (5107, 12717)]