21171618

素因数分解:

$2^1\times 3^6\times {\mathrm{13}}^1\times {\mathrm{1117}}^1$

素因数の和:1150

約数の個数: 56

約数和(自身を含む): 51322908

約数和(自身を除く): 30151290

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 81, 117, 162, 234, 243, 351, 486, 702, 729, 1053, 1117, 1458, 2106, 2234, 3159, 3351, 6318, 6702, 9477, 10053, 14521, 18954, 20106, 29042, 30159, 43563, 60318, 87126, 90477, 130689, 180954, 261378, 271431, 392067, 542862, 784134, 814293, 1176201, 1628586, 2352402, 3528603, 7057206, 10585809, 21171618]

約数ペア:

[(1, 21171618), (2, 10585809), (3, 7057206), (6, 3528603), (9, 2352402), (13, 1628586), (18, 1176201), (26, 814293), (27, 784134), (39, 542862), (54, 392067), (78, 271431), (81, 261378), (117, 180954), (162, 130689), (234, 90477), (243, 87126), (351, 60318), (486, 43563), (702, 30159), (729, 29042), (1053, 20106), (1117, 18954), (1458, 14521), (2106, 10053), (2234, 9477), (3159, 6702), (3351, 6318)]