20809844

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{4339}}^1$

素因数の和:4463

約数の個数: 24

約数和(自身を含む): 40101600

約数和(自身を除く): 19291756

約数列:

[1, 2, 4, 11, 22, 44, 109, 218, 436, 1199, 2398, 4339, 4796, 8678, 17356, 47729, 95458, 190916, 472951, 945902, 1891804, 5202461, 10404922, 20809844]

約数ペア:

[(1, 20809844), (2, 10404922), (4, 5202461), (11, 1891804), (22, 945902), (44, 472951), (109, 190916), (218, 95458), (436, 47729), (1199, 17356), (2398, 8678), (4339, 4796)]