21294474993

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{336613}}^1$

素因数の和:336707

約数の個数: 40

約数和(自身を含む): 35190974016

約数和(自身を除く): 13896499023

約数列:

[1, 3, 9, 11, 27, 33, 71, 81, 99, 213, 297, 639, 781, 891, 1917, 2343, 5751, 7029, 21087, 63261, 336613, 1009839, 3029517, 3702743, 9088551, 11108229, 23899523, 27265653, 33324687, 71698569, 99974061, 215095707, 262894753, 299922183, 645287121, 788684259, 1935861363, 2366052777, 7098158331, 21294474993]

約数ペア:

[(1, 21294474993), (3, 7098158331), (9, 2366052777), (11, 1935861363), (27, 788684259), (33, 645287121), (71, 299922183), (81, 262894753), (99, 215095707), (213, 99974061), (297, 71698569), (639, 33324687), (781, 27265653), (891, 23899523), (1917, 11108229), (2343, 9088551), (5751, 3702743), (7029, 3029517), (21087, 1009839), (63261, 336613)]