257155107

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{347}}^1\times {\mathrm{1321}}^1$

素因数の和:1699

約数の個数: 32

約数和(自身を含む): 397488384

約数和(自身を除く): 140333277

約数列:

[1, 3, 11, 17, 33, 51, 187, 347, 561, 1041, 1321, 3817, 3963, 5899, 11451, 14531, 17697, 22457, 43593, 64889, 67371, 194667, 247027, 458387, 741081, 1375161, 5042257, 7792579, 15126771, 23377737, 85718369, 257155107]

約数ペア:

[(1, 257155107), (3, 85718369), (11, 23377737), (17, 15126771), (33, 7792579), (51, 5042257), (187, 1375161), (347, 741081), (561, 458387), (1041, 247027), (1321, 194667), (3817, 67371), (3963, 64889), (5899, 43593), (11451, 22457), (14531, 17697)]