20988864

素因数分解:

$2^6\times 3^2\times {\mathrm{13}}^1\times {\mathrm{2803}}^1$

素因数の和:2834

約数の個数: 84

約数和(自身を含む): 64811656

約数和(自身を除く): 43822792

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 39, 48, 52, 64, 72, 78, 96, 104, 117, 144, 156, 192, 208, 234, 288, 312, 416, 468, 576, 624, 832, 936, 1248, 1872, 2496, 2803, 3744, 5606, 7488, 8409, 11212, 16818, 22424, 25227, 33636, 36439, 44848, 50454, 67272, 72878, 89696, 100908, 109317, 134544, 145756, 179392, 201816, 218634, 269088, 291512, 327951, 403632, 437268, 538176, 583024, 655902, 807264, 874536, 1166048, 1311804, 1614528, 1749072, 2332096, 2623608, 3498144, 5247216, 6996288, 10494432, 20988864]

約数ペア:

[(1, 20988864), (2, 10494432), (3, 6996288), (4, 5247216), (6, 3498144), (8, 2623608), (9, 2332096), (12, 1749072), (13, 1614528), (16, 1311804), (18, 1166048), (24, 874536), (26, 807264), (32, 655902), (36, 583024), (39, 538176), (48, 437268), (52, 403632), (64, 327951), (72, 291512), (78, 269088), (96, 218634), (104, 201816), (117, 179392), (144, 145756), (156, 134544), (192, 109317), (208, 100908), (234, 89696), (288, 72878), (312, 67272), (416, 50454), (468, 44848), (576, 36439), (624, 33636), (832, 25227), (936, 22424), (1248, 16818), (1872, 11212), (2496, 8409), (2803, 7488), (3744, 5606)]