28531839

素因数分解:

$3^1\times 7^1\times {\mathrm{643}}^1\times {\mathrm{2113}}^1$

素因数の和:2766

約数の個数: 16

約数和(自身を含む): 43565312

約数和(自身を除く): 15033473

約数列:

[1, 3, 7, 21, 643, 1929, 2113, 4501, 6339, 13503, 14791, 44373, 1358659, 4075977, 9510613, 28531839]

約数ペア:

[(1, 28531839), (3, 9510613), (7, 4075977), (21, 1358659), (643, 44373), (1929, 14791), (2113, 13503), (4501, 6339)]