16637643

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{263}}^1$

素因数の和:357

約数の個数: 40

約数和(自身を含む): 27599616

約数和(自身を除く): 10961973

約数列:

[1, 3, 9, 11, 27, 33, 71, 81, 99, 213, 263, 297, 639, 781, 789, 891, 1917, 2343, 2367, 2893, 5751, 7029, 7101, 8679, 18673, 21087, 21303, 26037, 56019, 63261, 78111, 168057, 205403, 234333, 504171, 616209, 1512513, 1848627, 5545881, 16637643]

約数ペア:

[(1, 16637643), (3, 5545881), (9, 1848627), (11, 1512513), (27, 616209), (33, 504171), (71, 234333), (81, 205403), (99, 168057), (213, 78111), (263, 63261), (297, 56019), (639, 26037), (781, 21303), (789, 21087), (891, 18673), (1917, 8679), (2343, 7101), (2367, 7029), (2893, 5751)]