20723927

素因数分解:

$7^1\times {\mathrm{19}}^2\times {\mathrm{59}}^1\times {\mathrm{139}}^1$

素因数の和:243

約数の個数: 24

約数和(自身を含む): 25603200

約数和(自身を除く): 4879273

約数列:

[1, 7, 19, 59, 133, 139, 361, 413, 973, 1121, 2527, 2641, 7847, 8201, 18487, 21299, 50179, 57407, 149093, 155819, 351253, 1090733, 2960561, 20723927]

約数ペア:

[(1, 20723927), (7, 2960561), (19, 1090733), (59, 351253), (133, 155819), (139, 149093), (361, 57407), (413, 50179), (973, 21299), (1121, 18487), (2527, 8201), (2641, 7847)]