31819359

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4363}}^1$

素因数の和:4407

約数の個数: 32

約数和(自身を含む): 52786944

約数和(自身を除く): 20967585

約数列:

[1, 3, 11, 13, 17, 33, 39, 51, 143, 187, 221, 429, 561, 663, 2431, 4363, 7293, 13089, 47993, 56719, 74171, 143979, 170157, 222513, 623909, 815881, 964223, 1871727, 2447643, 2892669, 10606453, 31819359]

約数ペア:

[(1, 31819359), (3, 10606453), (11, 2892669), (13, 2447643), (17, 1871727), (33, 964223), (39, 815881), (51, 623909), (143, 222513), (187, 170157), (221, 143979), (429, 74171), (561, 56719), (663, 47993), (2431, 13089), (4363, 7293)]