207740071

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{2861}}^1$

素因数の和:2943

約数の個数: 32

約数和(自身を含む): 276950016

約数和(自身を除く): 69209945

約数列:

[1, 7, 11, 23, 41, 77, 161, 253, 287, 451, 943, 1771, 2861, 3157, 6601, 10373, 20027, 31471, 65803, 72611, 117301, 220297, 460621, 723833, 821107, 1290311, 2697923, 5066831, 9032177, 18885461, 29677153, 207740071]

約数ペア:

[(1, 207740071), (7, 29677153), (11, 18885461), (23, 9032177), (41, 5066831), (77, 2697923), (161, 1290311), (253, 821107), (287, 723833), (451, 460621), (943, 220297), (1771, 117301), (2861, 72611), (3157, 65803), (6601, 31471), (10373, 20027)]