18946137

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{131}}^1$

素因数の和:309

約数の個数: 32

約数和(自身を含む): 29804544

約数和(自身を除く): 10858407

約数列:

[1, 3, 7, 21, 71, 97, 131, 213, 291, 393, 497, 679, 917, 1491, 2037, 2751, 6887, 9301, 12707, 20661, 27903, 38121, 48209, 65107, 88949, 144627, 195321, 266847, 902197, 2706591, 6315379, 18946137]

約数ペア:

[(1, 18946137), (3, 6315379), (7, 2706591), (21, 902197), (71, 266847), (97, 195321), (131, 144627), (213, 88949), (291, 65107), (393, 48209), (497, 38121), (679, 27903), (917, 20661), (1491, 12707), (2037, 9301), (2751, 6887)]