64719729

素因数分解:

$3^4\times {\mathrm{223}}^1\times {\mathrm{3583}}^1$

素因数の和:3818

約数の個数: 20

約数和(自身を含む): 97140736

約数和(自身を除く): 32421007

約数列:

[1, 3, 9, 27, 81, 223, 669, 2007, 3583, 6021, 10749, 18063, 32247, 96741, 290223, 799009, 2397027, 7191081, 21573243, 64719729]

約数ペア:

[(1, 64719729), (3, 21573243), (9, 7191081), (27, 2397027), (81, 799009), (223, 290223), (669, 96741), (2007, 32247), (3583, 18063), (6021, 10749)]