17980837

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:169

約数の個数: 32

約数和(自身を含む): 22708224

約数和(自身を除く): 4727387

約数列:

[1, 7, 31, 41, 43, 47, 217, 287, 301, 329, 1271, 1333, 1457, 1763, 1927, 2021, 8897, 9331, 10199, 12341, 13489, 14147, 54653, 59737, 62651, 82861, 382571, 418159, 438557, 580027, 2568691, 17980837]

約数ペア:

[(1, 17980837), (7, 2568691), (31, 580027), (41, 438557), (43, 418159), (47, 382571), (217, 82861), (287, 62651), (301, 59737), (329, 54653), (1271, 14147), (1333, 13489), (1457, 12341), (1763, 10199), (1927, 9331), (2021, 8897)]