28940667

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{72533}}^1$

素因数の和:72562

約数の個数: 16

約数和(自身を含む): 46421760

約数和(自身を除く): 17481093

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 72533, 217599, 507731, 1378127, 1523193, 4134381, 9646889, 28940667]

約数ペア:

[(1, 28940667), (3, 9646889), (7, 4134381), (19, 1523193), (21, 1378127), (57, 507731), (133, 217599), (399, 72533)]