20781044559

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{390893}}^1$

素因数の和:391092

約数の個数: 32

約数和(自身を含む): 33773241600

約数和(自身を除く): 12992197041

約数列:

[1, 3, 9, 11, 27, 33, 99, 179, 297, 537, 1611, 1969, 4833, 5907, 17721, 53163, 390893, 1172679, 3518037, 4299823, 10554111, 12899469, 38698407, 69969847, 116095221, 209909541, 629728623, 769668317, 1889185869, 2309004951, 6927014853, 20781044559]

約数ペア:

[(1, 20781044559), (3, 6927014853), (9, 2309004951), (11, 1889185869), (27, 769668317), (33, 629728623), (99, 209909541), (179, 116095221), (297, 69969847), (537, 38698407), (1611, 12899469), (1969, 10554111), (4833, 4299823), (5907, 3518037), (17721, 1172679), (53163, 390893)]