20156972

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{15797}}^1$

素因数の和:15841

約数の個数: 24

約数和(自身を含む): 39810960

約数和(自身を除く): 19653988

約数列:

[1, 2, 4, 11, 22, 29, 44, 58, 116, 319, 638, 1276, 15797, 31594, 63188, 173767, 347534, 458113, 695068, 916226, 1832452, 5039243, 10078486, 20156972]

約数ペア:

[(1, 20156972), (2, 10078486), (4, 5039243), (11, 1832452), (22, 916226), (29, 695068), (44, 458113), (58, 347534), (116, 173767), (319, 63188), (638, 31594), (1276, 15797)]