28731321

素因数分解:

$3^3\times {\mathrm{173}}^1\times {\mathrm{6151}}^1$

素因数の和:6333

約数の個数: 16

約数和(自身を含む): 42817920

約数和(自身を除く): 14086599

約数列:

[1, 3, 9, 27, 173, 519, 1557, 4671, 6151, 18453, 55359, 166077, 1064123, 3192369, 9577107, 28731321]

約数ペア:

[(1, 28731321), (3, 9577107), (9, 3192369), (27, 1064123), (173, 166077), (519, 55359), (1557, 18453), (4671, 6151)]