20407185

素因数分解:

$3^2\times 5^1\times {\mathrm{569}}^1\times {\mathrm{797}}^1$

素因数の和:1377

約数の個数: 24

約数和(自身を含む): 35479080

約数和(自身を除く): 15071895

約数列:

[1, 3, 5, 9, 15, 45, 569, 797, 1707, 2391, 2845, 3985, 5121, 7173, 8535, 11955, 25605, 35865, 453493, 1360479, 2267465, 4081437, 6802395, 20407185]

約数ペア:

[(1, 20407185), (3, 6802395), (5, 4081437), (9, 2267465), (15, 1360479), (45, 453493), (569, 35865), (797, 25605), (1707, 11955), (2391, 8535), (2845, 7173), (3985, 5121)]