20512019919

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1\times {\mathrm{1511}}^1$

素因数の和:1788

約数の個数: 64

約数和(自身を含む): 30851186688

約数和(自身を除く): 10339166769

約数列:

[1, 3, 17, 23, 51, 69, 71, 163, 213, 391, 489, 1173, 1207, 1511, 1633, 2771, 3621, 3749, 4533, 4899, 8313, 11247, 11573, 25687, 27761, 34719, 34753, 63733, 77061, 83283, 104259, 107281, 191199, 196741, 246293, 266179, 321843, 590223, 590801, 738879, 798537, 1772403, 1823777, 2467463, 4186981, 4525043, 5471331, 5664739, 7402389, 12560943, 13575129, 16994217, 17486803, 41946871, 52460409, 96300563, 125840613, 288901689, 297275651, 402196469, 891826953, 1206589407, 6837339973, 20512019919]

約数ペア:

[(1, 20512019919), (3, 6837339973), (17, 1206589407), (23, 891826953), (51, 402196469), (69, 297275651), (71, 288901689), (163, 125840613), (213, 96300563), (391, 52460409), (489, 41946871), (1173, 17486803), (1207, 16994217), (1511, 13575129), (1633, 12560943), (2771, 7402389), (3621, 5664739), (3749, 5471331), (4533, 4525043), (4899, 4186981), (8313, 2467463), (11247, 1823777), (11573, 1772403), (25687, 798537), (27761, 738879), (34719, 590801), (34753, 590223), (63733, 321843), (77061, 266179), (83283, 246293), (104259, 196741), (107281, 191199)]