19996245867

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1787}}^1\times {\mathrm{15101}}^1$

素因数の和:16923

約数の個数: 32

約数和(自身を含む): 30242661120

約数和(自身を除く): 10246415253

約数列:

[1, 3, 13, 19, 39, 57, 247, 741, 1787, 5361, 15101, 23231, 33953, 45303, 69693, 101859, 196313, 286919, 441389, 588939, 860757, 1324167, 3729947, 11189841, 26985487, 80956461, 350811331, 512724253, 1052433993, 1538172759, 6665415289, 19996245867]

約数ペア:

[(1, 19996245867), (3, 6665415289), (13, 1538172759), (19, 1052433993), (39, 512724253), (57, 350811331), (247, 80956461), (741, 26985487), (1787, 11189841), (5361, 3729947), (15101, 1324167), (23231, 860757), (33953, 588939), (45303, 441389), (69693, 286919), (101859, 196313)]