663663

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1$

素因数の和:64

約数の個数: 48

約数和(自身を含む): 1264896

約数和(自身を除く): 601233

約数列:

[1, 3, 7, 11, 13, 17, 21, 33, 39, 51, 77, 91, 119, 143, 169, 187, 221, 231, 273, 357, 429, 507, 561, 663, 1001, 1183, 1309, 1547, 1859, 2431, 2873, 3003, 3549, 3927, 4641, 5577, 7293, 8619, 13013, 17017, 20111, 31603, 39039, 51051, 60333, 94809, 221221, 663663]

約数ペア:

[(1, 663663), (3, 221221), (7, 94809), (11, 60333), (13, 51051), (17, 39039), (21, 31603), (33, 20111), (39, 17017), (51, 13013), (77, 8619), (91, 7293), (119, 5577), (143, 4641), (169, 3927), (187, 3549), (221, 3003), (231, 2873), (273, 2431), (357, 1859), (429, 1547), (507, 1309), (561, 1183), (663, 1001)]