220868977

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{701}}^1$

素因数の和:853

約数の個数: 32

約数和(自身を含む): 280350720

約数和(自身を除く): 59481743

約数列:

[1, 7, 19, 23, 103, 133, 161, 437, 701, 721, 1957, 2369, 3059, 4907, 13319, 13699, 16123, 16583, 45011, 72203, 93233, 112861, 306337, 315077, 505421, 1371857, 1660669, 2144359, 9602999, 11624683, 31552711, 220868977]

約数ペア:

[(1, 220868977), (7, 31552711), (19, 11624683), (23, 9602999), (103, 2144359), (133, 1660669), (161, 1371857), (437, 505421), (701, 315077), (721, 306337), (1957, 112861), (2369, 93233), (3059, 72203), (4907, 45011), (13319, 16583), (13699, 16123)]