209225912

素因数分解:

$2^3\times 7^1\times {\mathrm{211}}^1\times {\mathrm{17707}}^1$

素因数の和:17931

約数の個数: 32

約数和(自身を含む): 450491520

約数和(自身を除く): 241265608

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 211, 422, 844, 1477, 1688, 2954, 5908, 11816, 17707, 35414, 70828, 123949, 141656, 247898, 495796, 991592, 3736177, 7472354, 14944708, 26153239, 29889416, 52306478, 104612956, 209225912]

約数ペア:

[(1, 209225912), (2, 104612956), (4, 52306478), (7, 29889416), (8, 26153239), (14, 14944708), (28, 7472354), (56, 3736177), (211, 991592), (422, 495796), (844, 247898), (1477, 141656), (1688, 123949), (2954, 70828), (5908, 35414), (11816, 17707)]