257705451

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{9157}}^1$

素因数の和:9275

約数の個数: 24

約数和(自身を含む): 385734960

約数和(自身を除く): 128029509

約数列:

[1, 3, 9, 53, 59, 159, 177, 477, 531, 3127, 9157, 9381, 27471, 28143, 82413, 485321, 540263, 1455963, 1620789, 4367889, 4862367, 28633939, 85901817, 257705451]

約数ペア:

[(1, 257705451), (3, 85901817), (9, 28633939), (53, 4862367), (59, 4367889), (159, 1620789), (177, 1455963), (477, 540263), (531, 485321), (3127, 82413), (9157, 28143), (9381, 27471)]