209541579

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{173}}^1\times {\mathrm{2389}}^1$

素因数の和:2591

約数の個数: 24

約数和(自身を含む): 304409520

約数和(自身を除く): 94867941

約数列:

[1, 3, 13, 39, 169, 173, 507, 519, 2249, 2389, 6747, 7167, 29237, 31057, 87711, 93171, 403741, 413297, 1211223, 1239891, 5372861, 16118583, 69847193, 209541579]

約数ペア:

[(1, 209541579), (3, 69847193), (13, 16118583), (39, 5372861), (169, 1239891), (173, 1211223), (507, 413297), (519, 403741), (2249, 93171), (2389, 87711), (6747, 31057), (7167, 29237)]