12147345

素因数分解:

$3^2\times 5^1\times 7^3\times {\mathrm{787}}^1$

素因数の和:819

約数の個数: 48

約数和(自身を含む): 24585600

約数和(自身を除く): 12438255

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 147, 245, 315, 343, 441, 735, 787, 1029, 1715, 2205, 2361, 3087, 3935, 5145, 5509, 7083, 11805, 15435, 16527, 27545, 35415, 38563, 49581, 82635, 115689, 192815, 247905, 269941, 347067, 578445, 809823, 1349705, 1735335, 2429469, 4049115, 12147345]

約数ペア:

[(1, 12147345), (3, 4049115), (5, 2429469), (7, 1735335), (9, 1349705), (15, 809823), (21, 578445), (35, 347067), (45, 269941), (49, 247905), (63, 192815), (105, 115689), (147, 82635), (245, 49581), (315, 38563), (343, 35415), (441, 27545), (735, 16527), (787, 15435), (1029, 11805), (1715, 7083), (2205, 5509), (2361, 5145), (3087, 3935)]