388828713

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{317}}^1\times {\mathrm{4493}}^1$

素因数の和:4833

約数の個数: 32

約数和(自身を含む): 640233216

約数和(自身を除く): 251404503

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 317, 951, 2219, 4121, 4493, 6657, 12363, 13479, 28847, 31451, 58409, 86541, 94353, 175227, 408863, 1226589, 1424281, 4272843, 9969967, 18515653, 29909901, 55546959, 129609571, 388828713]

約数ペア:

[(1, 388828713), (3, 129609571), (7, 55546959), (13, 29909901), (21, 18515653), (39, 9969967), (91, 4272843), (273, 1424281), (317, 1226589), (951, 408863), (2219, 175227), (4121, 94353), (4493, 86541), (6657, 58409), (12363, 31451), (13479, 28847)]