208575409

素因数分解:

$7^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{2251}}^1$

素因数の和:2357

約数の個数: 24

約数和(自身を含む): 254674176

約数和(自身を除く): 46098767

約数列:

[1, 7, 31, 49, 61, 217, 427, 1519, 1891, 2251, 2989, 13237, 15757, 69781, 92659, 110299, 137311, 488467, 961177, 3419269, 4256641, 6728239, 29796487, 208575409]

約数ペア:

[(1, 208575409), (7, 29796487), (31, 6728239), (49, 4256641), (61, 3419269), (217, 961177), (427, 488467), (1519, 137311), (1891, 110299), (2251, 92659), (2989, 69781), (13237, 15757)]