28109949

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{70451}}^1$

素因数の和:70480

約数の個数: 16

約数和(自身を含む): 45089280

約数和(自身を除く): 16979331

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 70451, 211353, 493157, 1338569, 1479471, 4015707, 9369983, 28109949]

約数ペア:

[(1, 28109949), (3, 9369983), (7, 4015707), (19, 1479471), (21, 1338569), (57, 493157), (133, 211353), (399, 70451)]