21472299

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{631}}^1$

素因数の和:855

約数の個数: 24

約数和(自身を含む): 32864000

約数和(自身を除く): 11391701

約数列:

[1, 3, 9, 19, 57, 171, 199, 597, 631, 1791, 1893, 3781, 5679, 11343, 11989, 34029, 35967, 107901, 125569, 376707, 1130121, 2385811, 7157433, 21472299]

約数ペア:

[(1, 21472299), (3, 7157433), (9, 2385811), (19, 1130121), (57, 376707), (171, 125569), (199, 107901), (597, 35967), (631, 34029), (1791, 11989), (1893, 11343), (3781, 5679)]