21008141

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{1459}}^1$

素因数の和:1505

約数の個数: 24

約数和(自身を含む): 27961920

約数和(自身を除く): 6953779

約数列:

[1, 7, 11, 17, 77, 119, 121, 187, 847, 1309, 1459, 2057, 10213, 14399, 16049, 24803, 112343, 173621, 176539, 272833, 1235773, 1909831, 3001163, 21008141]

約数ペア:

[(1, 21008141), (7, 3001163), (11, 1909831), (17, 1235773), (77, 272833), (119, 176539), (121, 173621), (187, 112343), (847, 24803), (1309, 16049), (1459, 14399), (2057, 10213)]