20815659

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{2969}}^1$

素因数の和:3035

約数の個数: 24

約数和(自身を含む): 32432400

約数和(自身を除く): 11616741

約数列:

[1, 3, 9, 19, 41, 57, 123, 171, 369, 779, 2337, 2969, 7011, 8907, 26721, 56411, 121729, 169233, 365187, 507699, 1095561, 2312851, 6938553, 20815659]

約数ペア:

[(1, 20815659), (3, 6938553), (9, 2312851), (19, 1095561), (41, 507699), (57, 365187), (123, 169233), (171, 121729), (369, 56411), (779, 26721), (2337, 8907), (2969, 7011)]