28178362

素因数分解:

$2^1\times {\mathrm{131}}^2\times {\mathrm{821}}^1$

素因数の和:1085

約数の個数: 12

約数和(自身を含む): 42644538

約数和(自身を除く): 14466176

約数列:

[1, 2, 131, 262, 821, 1642, 17161, 34322, 107551, 215102, 14089181, 28178362]

約数ペア:

[(1, 28178362), (2, 14089181), (131, 215102), (262, 107551), (821, 34322), (1642, 17161)]