20031245

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{8329}}^1$

素因数の和:8384

約数の個数: 16

約数和(自身を含む): 26589360

約数和(自身を除く): 6558115

約数列:

[1, 5, 13, 37, 65, 185, 481, 2405, 8329, 41645, 108277, 308173, 541385, 1540865, 4006249, 20031245]

約数ペア:

[(1, 20031245), (5, 4006249), (13, 1540865), (37, 541385), (65, 308173), (185, 108277), (481, 41645), (2405, 8329)]