20819212

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{4643}}^1$

素因数の和:4725

約数の個数: 24

約数和(自身を含む): 39009600

約数和(自身を除く): 18190388

約数列:

[1, 2, 4, 19, 38, 59, 76, 118, 236, 1121, 2242, 4484, 4643, 9286, 18572, 88217, 176434, 273937, 352868, 547874, 1095748, 5204803, 10409606, 20819212]

約数ペア:

[(1, 20819212), (2, 10409606), (4, 5204803), (19, 1095748), (38, 547874), (59, 352868), (76, 273937), (118, 176434), (236, 88217), (1121, 18572), (2242, 9286), (4484, 4643)]