863289

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{193}}^1$

素因数の和:277

約数の個数: 24

約数和(自身を含む): 1452672

約数和(自身を除く): 589383

約数列:

[1, 3, 7, 9, 21, 63, 71, 193, 213, 497, 579, 639, 1351, 1491, 1737, 4053, 4473, 12159, 13703, 41109, 95921, 123327, 287763, 863289]

約数ペア:

[(1, 863289), (3, 287763), (7, 123327), (9, 95921), (21, 41109), (63, 13703), (71, 12159), (193, 4473), (213, 4053), (497, 1737), (579, 1491), (639, 1351)]