28921971

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1697}}^1$

素因数の和:1755

約数の個数: 32

約数和(自身を含む): 45642240

約数和(自身を除く): 16720269

約数列:

[1, 3, 13, 19, 23, 39, 57, 69, 247, 299, 437, 741, 897, 1311, 1697, 5091, 5681, 17043, 22061, 32243, 39031, 66183, 96729, 117093, 419159, 507403, 741589, 1257477, 1522209, 2224767, 9640657, 28921971]

約数ペア:

[(1, 28921971), (3, 9640657), (13, 2224767), (19, 1522209), (23, 1257477), (39, 741589), (57, 507403), (69, 419159), (247, 117093), (299, 96729), (437, 66183), (741, 39031), (897, 32243), (1311, 22061), (1697, 17043), (5091, 5681)]