209499157

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{211}}^1\times {\mathrm{881}}^1$

素因数の和:1129

約数の個数: 24

約数和(自身を含む): 255794112

約数和(自身を除く): 46294955

約数列:

[1, 7, 23, 49, 161, 211, 881, 1127, 1477, 4853, 6167, 10339, 20263, 33971, 43169, 141841, 185891, 237797, 992887, 1301237, 4275493, 9108659, 29928451, 209499157]

約数ペア:

[(1, 209499157), (7, 29928451), (23, 9108659), (49, 4275493), (161, 1301237), (211, 992887), (881, 237797), (1127, 185891), (1477, 141841), (4853, 43169), (6167, 33971), (10339, 20263)]