21724219

素因数分解:

${\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{151}}^1$

素因数の和:243

約数の個数: 24

約数和(自身を含む): 25472160

約数和(自身を除く): 3747941

約数列:

[1, 11, 29, 41, 121, 151, 319, 451, 1189, 1661, 3509, 4379, 4961, 6191, 13079, 18271, 48169, 68101, 143869, 179539, 529859, 749111, 1974929, 21724219]

約数ペア:

[(1, 21724219), (11, 1974929), (29, 749111), (41, 529859), (121, 179539), (151, 143869), (319, 68101), (451, 48169), (1189, 18271), (1661, 13079), (3509, 6191), (4379, 4961)]