21791109

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{4421}}^1$

素因数の和:4508

約数の個数: 16

約数和(自身を含む): 30564864

約数和(自身を除く): 8773755

約数列:

[1, 3, 31, 53, 93, 159, 1643, 4421, 4929, 13263, 137051, 234313, 411153, 702939, 7263703, 21791109]

約数ペア:

[(1, 21791109), (3, 7263703), (31, 702939), (53, 411153), (93, 234313), (159, 137051), (1643, 13263), (4421, 4929)]