221498305

素因数分解:

$5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{211}}^1\times {\mathrm{337}}^1$

素因数の和:649

約数の個数: 32

約数和(自身を含む): 309553920

約数和(自身を除く): 88055615

約数列:

[1, 5, 7, 35, 89, 211, 337, 445, 623, 1055, 1477, 1685, 2359, 3115, 7385, 11795, 18779, 29993, 71107, 93895, 131453, 149965, 209951, 355535, 497749, 657265, 1049755, 2488745, 6328523, 31642615, 44299661, 221498305]

約数ペア:

[(1, 221498305), (5, 44299661), (7, 31642615), (35, 6328523), (89, 2488745), (211, 1049755), (337, 657265), (445, 497749), (623, 355535), (1055, 209951), (1477, 149965), (1685, 131453), (2359, 93895), (3115, 71107), (7385, 29993), (11795, 18779)]