19471905

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{347}}^1$

素因数の和:430

約数の個数: 48

約数和(自身を含む): 35830080

約数和(自身を除く): 16358175

約数列:

[1, 3, 5, 9, 15, 29, 43, 45, 87, 129, 145, 215, 261, 347, 387, 435, 645, 1041, 1247, 1305, 1735, 1935, 3123, 3741, 5205, 6235, 10063, 11223, 14921, 15615, 18705, 30189, 44763, 50315, 56115, 74605, 90567, 134289, 150945, 223815, 432709, 452835, 671445, 1298127, 2163545, 3894381, 6490635, 19471905]

約数ペア:

[(1, 19471905), (3, 6490635), (5, 3894381), (9, 2163545), (15, 1298127), (29, 671445), (43, 452835), (45, 432709), (87, 223815), (129, 150945), (145, 134289), (215, 90567), (261, 74605), (347, 56115), (387, 50315), (435, 44763), (645, 30189), (1041, 18705), (1247, 15615), (1305, 14921), (1735, 11223), (1935, 10063), (3123, 6235), (3741, 5205)]