21052593

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{191}}^1\times {\mathrm{331}}^1$

素因数の和:565

約数の個数: 24

約数和(自身を含む): 31489536

約数和(自身を除く): 10436943

約数列:

[1, 3, 9, 37, 111, 191, 331, 333, 573, 993, 1719, 2979, 7067, 12247, 21201, 36741, 63221, 63603, 110223, 189663, 568989, 2339177, 7017531, 21052593]

約数ペア:

[(1, 21052593), (3, 7017531), (9, 2339177), (37, 568989), (111, 189663), (191, 110223), (331, 63603), (333, 63221), (573, 36741), (993, 21201), (1719, 12247), (2979, 7067)]