19991928

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1847}}^1$

素因数の和:1908

約数の個数: 64

約数和(自身を含む): 55883520

約数和(自身を除く): 35891592

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 41, 44, 66, 82, 88, 123, 132, 164, 246, 264, 328, 451, 492, 902, 984, 1353, 1804, 1847, 2706, 3608, 3694, 5412, 5541, 7388, 10824, 11082, 14776, 20317, 22164, 40634, 44328, 60951, 75727, 81268, 121902, 151454, 162536, 227181, 243804, 302908, 454362, 487608, 605816, 832997, 908724, 1665994, 1817448, 2498991, 3331988, 4997982, 6663976, 9995964, 19991928]

約数ペア:

[(1, 19991928), (2, 9995964), (3, 6663976), (4, 4997982), (6, 3331988), (8, 2498991), (11, 1817448), (12, 1665994), (22, 908724), (24, 832997), (33, 605816), (41, 487608), (44, 454362), (66, 302908), (82, 243804), (88, 227181), (123, 162536), (132, 151454), (164, 121902), (246, 81268), (264, 75727), (328, 60951), (451, 44328), (492, 40634), (902, 22164), (984, 20317), (1353, 14776), (1804, 11082), (1847, 10824), (2706, 7388), (3608, 5541), (3694, 5412)]