20225257

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{173}}^1$

素因数の和:249

約数の個数: 24

約数和(自身を含む): 24247944

約数和(自身を除く): 4022687

約数列:

[1, 13, 17, 23, 173, 221, 299, 391, 529, 2249, 2941, 3979, 5083, 6877, 8993, 38233, 51727, 67643, 91517, 116909, 879359, 1189721, 1555789, 20225257]

約数ペア:

[(1, 20225257), (13, 1555789), (17, 1189721), (23, 879359), (173, 116909), (221, 91517), (299, 67643), (391, 51727), (529, 38233), (2249, 8993), (2941, 6877), (3979, 5083)]