20643389

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{3221}}^1$

素因数の和:3280

約数の個数: 16

約数和(自身を含む): 24358320

約数和(自身を除く): 3714931

約数列:

[1, 13, 17, 29, 221, 377, 493, 3221, 6409, 41873, 54757, 93409, 711841, 1214317, 1587953, 20643389]

約数ペア:

[(1, 20643389), (13, 1587953), (17, 1214317), (29, 711841), (221, 93409), (377, 54757), (493, 41873), (3221, 6409)]