20349804915

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1447}}^1\times {\mathrm{28411}}^1$

素因数の和:29880

約数の個数: 48

約数和(自身を含む): 38507579136

約数和(自身を除く): 18157774221

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495, 1447, 4341, 7235, 13023, 15917, 21705, 28411, 47751, 65115, 79585, 85233, 142055, 143253, 238755, 255699, 312521, 426165, 716265, 937563, 1278495, 1562605, 2812689, 4687815, 14063445, 41110717, 123332151, 205553585, 369996453, 452217887, 616660755, 1356653661, 1849982265, 2261089435, 4069960983, 6783268305, 20349804915]

約数ペア:

[(1, 20349804915), (3, 6783268305), (5, 4069960983), (9, 2261089435), (11, 1849982265), (15, 1356653661), (33, 616660755), (45, 452217887), (55, 369996453), (99, 205553585), (165, 123332151), (495, 41110717), (1447, 14063445), (4341, 4687815), (7235, 2812689), (13023, 1562605), (15917, 1278495), (21705, 937563), (28411, 716265), (47751, 426165), (65115, 312521), (79585, 255699), (85233, 238755), (142055, 143253)]