21326049

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{809}}^1$

素因数の和:945

約数の個数: 24

約数和(自身を含む): 32221800

約数和(自身を除く): 10895751

約数列:

[1, 3, 9, 29, 87, 101, 261, 303, 809, 909, 2427, 2929, 7281, 8787, 23461, 26361, 70383, 81709, 211149, 245127, 735381, 2369561, 7108683, 21326049]

約数ペア:

[(1, 21326049), (3, 7108683), (9, 2369561), (29, 735381), (87, 245127), (101, 211149), (261, 81709), (303, 70383), (809, 26361), (909, 23461), (2427, 8787), (2929, 7281)]