28921389

素因数分解:

$3^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{6067}}^1$

素因数の和:6304

約数の個数: 16

約数和(自身を含む): 44272128

約数和(自身を除く): 15350739

約数列:

[1, 3, 7, 21, 227, 681, 1589, 4767, 6067, 18201, 42469, 127407, 1377209, 4131627, 9640463, 28921389]

約数ペア:

[(1, 28921389), (3, 9640463), (7, 4131627), (21, 1377209), (227, 127407), (681, 42469), (1589, 18201), (4767, 6067)]