257848129

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{281}}^1\times {\mathrm{701}}^1$

素因数の和:1017

約数の個数: 32

約数和(自身を含む): 342081792

約数和(自身を除く): 84233663

約数列:

[1, 7, 11, 17, 77, 119, 187, 281, 701, 1309, 1967, 3091, 4777, 4907, 7711, 11917, 21637, 33439, 52547, 53977, 83419, 131087, 196981, 367829, 917609, 1378867, 2166791, 3348677, 15167537, 23440739, 36835447, 257848129]

約数ペア:

[(1, 257848129), (7, 36835447), (11, 23440739), (17, 15167537), (77, 3348677), (119, 2166791), (187, 1378867), (281, 917609), (701, 367829), (1309, 196981), (1967, 131087), (3091, 83419), (4777, 53977), (4907, 52547), (7711, 33439), (11917, 21637)]