28187751

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{439}}^1\times {\mathrm{1259}}^1$

素因数の和:1718

約数の個数: 16

約数和(自身を含む): 39916800

約数和(自身を除く): 11729049

約数列:

[1, 3, 17, 51, 439, 1259, 1317, 3777, 7463, 21403, 22389, 64209, 552701, 1658103, 9395917, 28187751]

約数ペア:

[(1, 28187751), (3, 9395917), (17, 1658103), (51, 552701), (439, 64209), (1259, 22389), (1317, 21403), (3777, 7463)]