21243183

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{179}}^2$

素因数の和:391

約数の個数: 24

約数和(自身を含む): 32478768

約数和(自身を除く): 11235585

約数列:

[1, 3, 13, 17, 39, 51, 179, 221, 537, 663, 2327, 3043, 6981, 9129, 32041, 39559, 96123, 118677, 416533, 544697, 1249599, 1634091, 7081061, 21243183]

約数ペア:

[(1, 21243183), (3, 7081061), (13, 1634091), (17, 1249599), (39, 544697), (51, 416533), (179, 118677), (221, 96123), (537, 39559), (663, 32041), (2327, 9129), (3043, 6981)]