28240251

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1657}}^1$

素因数の和:1715

約数の個数: 32

約数和(自身を含む): 44567040

約数和(自身を除く): 16326789

約数列:

[1, 3, 13, 19, 23, 39, 57, 69, 247, 299, 437, 741, 897, 1311, 1657, 4971, 5681, 17043, 21541, 31483, 38111, 64623, 94449, 114333, 409279, 495443, 724109, 1227837, 1486329, 2172327, 9413417, 28240251]

約数ペア:

[(1, 28240251), (3, 9413417), (13, 2172327), (19, 1486329), (23, 1227837), (39, 724109), (57, 495443), (69, 409279), (247, 114333), (299, 94449), (437, 64623), (741, 38111), (897, 31483), (1311, 21541), (1657, 17043), (4971, 5681)]