2189271

素因数分解:

$3^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{281}}^1$

素因数の和:351

約数の個数: 24

約数和(自身を含む): 3471984

約数和(自身を除く): 1282713

約数列:

[1, 3, 7, 21, 49, 53, 147, 159, 281, 371, 843, 1113, 1967, 2597, 5901, 7791, 13769, 14893, 41307, 44679, 104251, 312753, 729757, 2189271]

約数ペア:

[(1, 2189271), (3, 729757), (7, 312753), (21, 104251), (49, 44679), (53, 41307), (147, 14893), (159, 13769), (281, 7791), (371, 5901), (843, 2597), (1113, 1967)]