217423766

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{421}}^1\times {\mathrm{997}}^1$

素因数の和:1464

約数の個数: 32

約数和(自身を含む): 384094272

約数和(自身を除く): 166670506

約数列:

[1, 2, 7, 14, 37, 74, 259, 421, 518, 842, 997, 1994, 2947, 5894, 6979, 13958, 15577, 31154, 36889, 73778, 109039, 218078, 258223, 419737, 516446, 839474, 2938159, 5876318, 15530269, 31060538, 108711883, 217423766]

約数ペア:

[(1, 217423766), (2, 108711883), (7, 31060538), (14, 15530269), (37, 5876318), (74, 2938159), (259, 839474), (421, 516446), (518, 419737), (842, 258223), (997, 218078), (1994, 109039), (2947, 73778), (5894, 36889), (6979, 31154), (13958, 15577)]