20820866

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{41}}^2\times {\mathrm{563}}^1$

素因数の和:658

約数の個数: 24

約数和(自身を含む): 34983792

約数和(自身を除く): 14162926

約数列:

[1, 2, 11, 22, 41, 82, 451, 563, 902, 1126, 1681, 3362, 6193, 12386, 18491, 23083, 36982, 46166, 253913, 507826, 946403, 1892806, 10410433, 20820866]

約数ペア:

[(1, 20820866), (2, 10410433), (11, 1892806), (22, 946403), (41, 507826), (82, 253913), (451, 46166), (563, 36982), (902, 23083), (1126, 18491), (1681, 12386), (3362, 6193)]