19668816

素因数分解:

$2^4\times 3^2\times {\mathrm{137}}^1\times {\mathrm{997}}^1$

素因数の和:1148

約数の個数: 60

約数和(自身を含む): 55502772

約数和(自身を除く): 35833956

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 137, 144, 274, 411, 548, 822, 997, 1096, 1233, 1644, 1994, 2192, 2466, 2991, 3288, 3988, 4932, 5982, 6576, 7976, 8973, 9864, 11964, 15952, 17946, 19728, 23928, 35892, 47856, 71784, 136589, 143568, 273178, 409767, 546356, 819534, 1092712, 1229301, 1639068, 2185424, 2458602, 3278136, 4917204, 6556272, 9834408, 19668816]

約数ペア:

[(1, 19668816), (2, 9834408), (3, 6556272), (4, 4917204), (6, 3278136), (8, 2458602), (9, 2185424), (12, 1639068), (16, 1229301), (18, 1092712), (24, 819534), (36, 546356), (48, 409767), (72, 273178), (137, 143568), (144, 136589), (274, 71784), (411, 47856), (548, 35892), (822, 23928), (997, 19728), (1096, 17946), (1233, 15952), (1644, 11964), (1994, 9864), (2192, 8973), (2466, 7976), (2991, 6576), (3288, 5982), (3988, 4932)]