21934385

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:265

約数の個数: 32

約数和(自身を含む): 30046464

約数和(自身を除く): 8112079

約数列:

[1, 5, 11, 41, 55, 71, 137, 205, 355, 451, 685, 781, 1507, 2255, 2911, 3905, 5617, 7535, 9727, 14555, 28085, 32021, 48635, 61787, 106997, 160105, 308935, 398807, 534985, 1994035, 4386877, 21934385]

約数ペア:

[(1, 21934385), (5, 4386877), (11, 1994035), (41, 534985), (55, 398807), (71, 308935), (137, 160105), (205, 106997), (355, 61787), (451, 48635), (685, 32021), (781, 28085), (1507, 14555), (2255, 9727), (2911, 7535), (3905, 5617)]