19155609

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{21499}}^1$

素因数の和:21522

約数の個数: 20

約数和(自身を含む): 31218000

約数和(自身を除く): 12062391

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 297, 891, 21499, 64497, 193491, 236489, 580473, 709467, 1741419, 2128401, 6385203, 19155609]

約数ペア:

[(1, 19155609), (3, 6385203), (9, 2128401), (11, 1741419), (27, 709467), (33, 580473), (81, 236489), (99, 193491), (297, 64497), (891, 21499)]