18557838

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1117}}^1$

素因数の和:1209

約数の個数: 48

約数和(自身を含む): 43950816

約数和(自身を除く): 25392978

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 71, 78, 117, 142, 213, 234, 426, 639, 923, 1117, 1278, 1846, 2234, 2769, 3351, 5538, 6702, 8307, 10053, 14521, 16614, 20106, 29042, 43563, 79307, 87126, 130689, 158614, 237921, 261378, 475842, 713763, 1030991, 1427526, 2061982, 3092973, 6185946, 9278919, 18557838]

約数ペア:

[(1, 18557838), (2, 9278919), (3, 6185946), (6, 3092973), (9, 2061982), (13, 1427526), (18, 1030991), (26, 713763), (39, 475842), (71, 261378), (78, 237921), (117, 158614), (142, 130689), (213, 87126), (234, 79307), (426, 43563), (639, 29042), (923, 20106), (1117, 16614), (1278, 14521), (1846, 10053), (2234, 8307), (2769, 6702), (3351, 5538)]