21700389

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{1427}}^1$

素因数の和:1604

約数の個数: 16

約数和(自身を含む): 29953728

約数和(自身を除く): 8253339

約数列:

[1, 3, 37, 111, 137, 411, 1427, 4281, 5069, 15207, 52799, 158397, 195499, 586497, 7233463, 21700389]

約数ペア:

[(1, 21700389), (3, 7233463), (37, 586497), (111, 195499), (137, 158397), (411, 52799), (1427, 15207), (4281, 5069)]