20782047

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{251}}^1$

素因数の和:471

約数の個数: 32

約数和(自身を含む): 32852736

約数和(自身を除く): 12070689

約数列:

[1, 3, 11, 13, 33, 39, 143, 193, 251, 429, 579, 753, 2123, 2509, 2761, 3263, 6369, 7527, 8283, 9789, 27599, 35893, 48443, 82797, 107679, 145329, 532873, 629759, 1598619, 1889277, 6927349, 20782047]

約数ペア:

[(1, 20782047), (3, 6927349), (11, 1889277), (13, 1598619), (33, 629759), (39, 532873), (143, 145329), (193, 107679), (251, 82797), (429, 48443), (579, 35893), (753, 27599), (2123, 9789), (2509, 8283), (2761, 7527), (3263, 6369)]