214917913

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{9781}}^1$

素因数の和:9904

約数の個数: 16

約数和(自身を含む): 254801536

約数和(自身を除く): 39883623

約数列:

[1, 7, 43, 73, 301, 511, 3139, 9781, 21973, 68467, 420583, 714013, 2944081, 4998091, 30702559, 214917913]

約数ペア:

[(1, 214917913), (7, 30702559), (43, 4998091), (73, 2944081), (301, 714013), (511, 420583), (3139, 68467), (9781, 21973)]