19421127

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{307}}^1$

素因数の和:401

約数の個数: 40

約数和(自身を含む): 32199552

約数和(自身を除く): 12778425

約数列:

[1, 3, 9, 11, 27, 33, 71, 81, 99, 213, 297, 307, 639, 781, 891, 921, 1917, 2343, 2763, 3377, 5751, 7029, 8289, 10131, 21087, 21797, 24867, 30393, 63261, 65391, 91179, 196173, 239767, 273537, 588519, 719301, 1765557, 2157903, 6473709, 19421127]

約数ペア:

[(1, 19421127), (3, 6473709), (9, 2157903), (11, 1765557), (27, 719301), (33, 588519), (71, 273537), (81, 239767), (99, 196173), (213, 91179), (297, 65391), (307, 63261), (639, 30393), (781, 24867), (891, 21797), (921, 21087), (1917, 10131), (2343, 8289), (2763, 7029), (3377, 5751)]