21806213

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{1399}}^1$

素因数の和:1532

約数の個数: 16

約数和(自身を含む): 25872000

約数和(自身を除く): 4065787

約数列:

[1, 11, 13, 109, 143, 1199, 1399, 1417, 15389, 15587, 18187, 152491, 200057, 1677401, 1982383, 21806213]

約数ペア:

[(1, 21806213), (11, 1982383), (13, 1677401), (109, 200057), (143, 152491), (1199, 18187), (1399, 15587), (1417, 15389)]