19765863

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{6257}}^1$

素因数の和:6285

約数の個数: 24

約数和(自身を含む): 31890768

約数和(自身を除く): 12124905

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 243, 351, 1053, 3159, 6257, 18771, 56313, 81341, 168939, 244023, 506817, 732069, 1520451, 2196207, 6588621, 19765863]

約数ペア:

[(1, 19765863), (3, 6588621), (9, 2196207), (13, 1520451), (27, 732069), (39, 506817), (81, 244023), (117, 168939), (243, 81341), (351, 56313), (1053, 18771), (3159, 6257)]