20903715

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{66361}}^1$

素因数の和:66379

約数の個数: 24

約数和(自身を含む): 41409888

約数和(自身を除く): 20506173

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 66361, 199083, 331805, 464527, 597249, 995415, 1393581, 2322635, 2986245, 4180743, 6967905, 20903715]

約数ペア:

[(1, 20903715), (3, 6967905), (5, 4180743), (7, 2986245), (9, 2322635), (15, 1393581), (21, 995415), (35, 597249), (45, 464527), (63, 331805), (105, 199083), (315, 66361)]