20111880321

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{8311}}^1$

素因数の和:8423

約数の個数: 72

約数和(自身を含む): 33062542656

約数和(自身を除く): 12950662335

約数列:

[1, 3, 9, 13, 37, 39, 43, 111, 117, 129, 169, 333, 387, 481, 507, 559, 1443, 1521, 1591, 1677, 4329, 4773, 5031, 6253, 7267, 8311, 14319, 18759, 20683, 21801, 24933, 56277, 62049, 65403, 74799, 108043, 186147, 268879, 307507, 324129, 357373, 806637, 922521, 972387, 1072119, 1404559, 2419911, 2767563, 3216357, 3997591, 4213677, 4645849, 11992773, 12641031, 13222801, 13937547, 35978319, 39668403, 41812641, 51968683, 60396037, 119005209, 155906049, 171896413, 181188111, 467718147, 515689239, 543564333, 1547067717, 2234653369, 6703960107, 20111880321]

約数ペア:

[(1, 20111880321), (3, 6703960107), (9, 2234653369), (13, 1547067717), (37, 543564333), (39, 515689239), (43, 467718147), (111, 181188111), (117, 171896413), (129, 155906049), (169, 119005209), (333, 60396037), (387, 51968683), (481, 41812641), (507, 39668403), (559, 35978319), (1443, 13937547), (1521, 13222801), (1591, 12641031), (1677, 11992773), (4329, 4645849), (4773, 4213677), (5031, 3997591), (6253, 3216357), (7267, 2767563), (8311, 2419911), (14319, 1404559), (18759, 1072119), (20683, 972387), (21801, 922521), (24933, 806637), (56277, 357373), (62049, 324129), (65403, 307507), (74799, 268879), (108043, 186147)]