20971962

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^2\times {\mathrm{9629}}^1$

素因数の和:9659

約数の個数: 36

約数和(自身を含む): 49950810

約数和(自身を除く): 28978848

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 121, 198, 242, 363, 726, 1089, 2178, 9629, 19258, 28887, 57774, 86661, 105919, 173322, 211838, 317757, 635514, 953271, 1165109, 1906542, 2330218, 3495327, 6990654, 10485981, 20971962]

約数ペア:

[(1, 20971962), (2, 10485981), (3, 6990654), (6, 3495327), (9, 2330218), (11, 1906542), (18, 1165109), (22, 953271), (33, 635514), (66, 317757), (99, 211838), (121, 173322), (198, 105919), (242, 86661), (363, 57774), (726, 28887), (1089, 19258), (2178, 9629)]