208907587

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{191}}^1$

素因数の和:379

約数の個数: 32

約数和(自身を含む): 254951424

約数和(自身を除く): 46043837

約数列:

[1, 7, 37, 41, 103, 191, 259, 287, 721, 1337, 1517, 3811, 4223, 7067, 7831, 10619, 19673, 26677, 29561, 49469, 54817, 137711, 156251, 289747, 727901, 806593, 1093757, 2028229, 5095307, 5646151, 29843941, 208907587]

約数ペア:

[(1, 208907587), (7, 29843941), (37, 5646151), (41, 5095307), (103, 2028229), (191, 1093757), (259, 806593), (287, 727901), (721, 289747), (1337, 156251), (1517, 137711), (3811, 54817), (4223, 49469), (7067, 29561), (7831, 26677), (10619, 19673)]