28713237

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71963}}^1$

素因数の和:71992

約数の個数: 16

約数和(自身を含む): 46056960

約数和(自身を除く): 17343723

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 71963, 215889, 503741, 1367297, 1511223, 4101891, 9571079, 28713237]

約数ペア:

[(1, 28713237), (3, 9571079), (7, 4101891), (19, 1511223), (21, 1367297), (57, 503741), (133, 215889), (399, 71963)]