28283073

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{491}}^1$

素因数の和:725

約数の個数: 32

約数和(自身を含む): 46728192

約数和(自身を除く): 18445119

約数列:

[1, 3, 7, 13, 21, 39, 91, 211, 273, 491, 633, 1473, 1477, 2743, 3437, 4431, 6383, 8229, 10311, 19149, 19201, 44681, 57603, 103601, 134043, 310803, 725207, 1346813, 2175621, 4040439, 9427691, 28283073]

約数ペア:

[(1, 28283073), (3, 9427691), (7, 4040439), (13, 2175621), (21, 1346813), (39, 725207), (91, 310803), (211, 134043), (273, 103601), (491, 57603), (633, 44681), (1473, 19201), (1477, 19149), (2743, 10311), (3437, 8229), (4431, 6383)]