2660721

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{257}}^1$

素因数の和:313

約数の個数: 32

約数和(自身を含む): 4458240

約数和(自身を除く): 1797519

約数列:

[1, 3, 7, 17, 21, 29, 51, 87, 119, 203, 257, 357, 493, 609, 771, 1479, 1799, 3451, 4369, 5397, 7453, 10353, 13107, 22359, 30583, 52171, 91749, 126701, 156513, 380103, 886907, 2660721]

約数ペア:

[(1, 2660721), (3, 886907), (7, 380103), (17, 156513), (21, 126701), (29, 91749), (51, 52171), (87, 30583), (119, 22359), (203, 13107), (257, 10353), (357, 7453), (493, 5397), (609, 4369), (771, 3451), (1479, 1799)]