28551471

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{727}}^1$

素因数の和:815

約数の個数: 32

約数和(自身を含む): 44029440

約数和(自身を除く): 15477969

約数列:

[1, 3, 13, 19, 39, 53, 57, 159, 247, 689, 727, 741, 1007, 2067, 2181, 3021, 9451, 13091, 13813, 28353, 38531, 39273, 41439, 115593, 179569, 500903, 538707, 732089, 1502709, 2196267, 9517157, 28551471]

約数ペア:

[(1, 28551471), (3, 9517157), (13, 2196267), (19, 1502709), (39, 732089), (53, 538707), (57, 500903), (159, 179569), (247, 115593), (689, 41439), (727, 39273), (741, 38531), (1007, 28353), (2067, 13813), (2181, 13091), (3021, 9451)]