21143733

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31891}}^1$

素因数の和:31924

約数の個数: 16

約数和(自身を含む): 32147136

約数和(自身を除く): 11003403

約数列:

[1, 3, 13, 17, 39, 51, 221, 663, 31891, 95673, 414583, 542147, 1243749, 1626441, 7047911, 21143733]

約数ペア:

[(1, 21143733), (3, 7047911), (13, 1626441), (17, 1243749), (39, 542147), (51, 414583), (221, 95673), (663, 31891)]