212915547

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{839}}^1$

素因数の和:1105

約数の個数: 40

約数和(自身を含む): 344356320

約数和(自身を除く): 131440773

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 241, 351, 723, 839, 1053, 2169, 2517, 3133, 6507, 7551, 9399, 10907, 19521, 22653, 28197, 32721, 67959, 84591, 98163, 202199, 253773, 294489, 606597, 883467, 1819791, 2628587, 5459373, 7885761, 16378119, 23657283, 70971849, 212915547]

約数ペア:

[(1, 212915547), (3, 70971849), (9, 23657283), (13, 16378119), (27, 7885761), (39, 5459373), (81, 2628587), (117, 1819791), (241, 883467), (351, 606597), (723, 294489), (839, 253773), (1053, 202199), (2169, 98163), (2517, 84591), (3133, 67959), (6507, 32721), (7551, 28197), (9399, 22653), (10907, 19521)]