21907071

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{21929}}^1$

素因数の和:21975

約数の個数: 16

約数和(自身を含む): 33333600

約数和(自身を除く): 11426529

約数列:

[1, 3, 9, 27, 37, 111, 333, 999, 21929, 65787, 197361, 592083, 811373, 2434119, 7302357, 21907071]

約数ペア:

[(1, 21907071), (3, 7302357), (9, 2434119), (27, 811373), (37, 592083), (111, 197361), (333, 65787), (999, 21929)]