19954408

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{43}}^2\times {\mathrm{71}}^1$

素因数の和:182

約数の個数: 48

約数和(自身を含む): 40888800

約数和(自身を除く): 20934392

約数列:

[1, 2, 4, 8, 19, 38, 43, 71, 76, 86, 142, 152, 172, 284, 344, 568, 817, 1349, 1634, 1849, 2698, 3053, 3268, 3698, 5396, 6106, 6536, 7396, 10792, 12212, 14792, 24424, 35131, 58007, 70262, 116014, 131279, 140524, 232028, 262558, 281048, 464056, 525116, 1050232, 2494301, 4988602, 9977204, 19954408]

約数ペア:

[(1, 19954408), (2, 9977204), (4, 4988602), (8, 2494301), (19, 1050232), (38, 525116), (43, 464056), (71, 281048), (76, 262558), (86, 232028), (142, 140524), (152, 131279), (172, 116014), (284, 70262), (344, 58007), (568, 35131), (817, 24424), (1349, 14792), (1634, 12212), (1849, 10792), (2698, 7396), (3053, 6536), (3268, 6106), (3698, 5396)]