28490691

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{4019}}^1$

素因数の和:4178

約数の個数: 16

約数和(自身を含む): 40521600

約数和(自身を除く): 12030909

約数列:

[1, 3, 17, 51, 139, 417, 2363, 4019, 7089, 12057, 68323, 204969, 558641, 1675923, 9496897, 28490691]

約数ペア:

[(1, 28490691), (3, 9496897), (17, 1675923), (51, 558641), (139, 204969), (417, 68323), (2363, 12057), (4019, 7089)]