21589139

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{3511}}^1$

素因数の和:3578

約数の個数: 16

約数和(自身を含む): 25960704

約数和(自身を除く): 4371565

約数列:

[1, 11, 13, 43, 143, 473, 559, 3511, 6149, 38621, 45643, 150973, 502073, 1660703, 1962649, 21589139]

約数ペア:

[(1, 21589139), (11, 1962649), (13, 1660703), (43, 502073), (143, 150973), (473, 45643), (559, 38621), (3511, 6149)]