19953297

素因数分解:

$3^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2707}}^1$

素因数の和:2739

約数の個数: 40

約数和(自身を含む): 36698816

約数和(自身を除く): 16745519

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 81, 91, 117, 189, 273, 351, 567, 819, 1053, 2457, 2707, 7371, 8121, 18949, 24363, 35191, 56847, 73089, 105573, 170541, 219267, 246337, 316719, 511623, 739011, 950157, 1534869, 2217033, 2850471, 6651099, 19953297]

約数ペア:

[(1, 19953297), (3, 6651099), (7, 2850471), (9, 2217033), (13, 1534869), (21, 950157), (27, 739011), (39, 511623), (63, 316719), (81, 246337), (91, 219267), (117, 170541), (189, 105573), (273, 73089), (351, 56847), (567, 35191), (819, 24363), (1053, 18949), (2457, 8121), (2707, 7371)]