212211321

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{235007}}^1$

素因数の和:235060

約数の個数: 16

約数和(自身を含む): 330891264

約数和(自身を除く): 118679943

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 235007, 705021, 1645049, 4935147, 10105301, 30315903, 70737107, 212211321]

約数ペア:

[(1, 212211321), (3, 70737107), (7, 30315903), (21, 10105301), (43, 4935147), (129, 1645049), (301, 705021), (903, 235007)]