1321502721

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{78367}}^1$

素因数の和:78461

約数の個数: 32

約数和(自身を含む): 2226905088

約数和(自身を除く): 905402367

約数列:

[1, 3, 7, 11, 21, 33, 73, 77, 219, 231, 511, 803, 1533, 2409, 5621, 16863, 78367, 235101, 548569, 862037, 1645707, 2586111, 5720791, 6034259, 17162373, 18102777, 40045537, 62928701, 120136611, 188786103, 440500907, 1321502721]

約数ペア:

[(1, 1321502721), (3, 440500907), (7, 188786103), (11, 120136611), (21, 62928701), (33, 40045537), (73, 18102777), (77, 17162373), (219, 6034259), (231, 5720791), (511, 2586111), (803, 1645707), (1533, 862037), (2409, 548569), (5621, 235101), (16863, 78367)]