21504912

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{241}}^1$

素因数の和:289

約数の個数: 120

約数和(自身を含む): 65897568

約数和(自身を除く): 44392656

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 13, 16, 22, 24, 26, 33, 39, 44, 48, 52, 66, 78, 88, 104, 132, 143, 156, 169, 176, 208, 241, 264, 286, 312, 338, 429, 482, 507, 528, 572, 624, 676, 723, 858, 964, 1014, 1144, 1352, 1446, 1716, 1859, 1928, 2028, 2288, 2651, 2704, 2892, 3133, 3432, 3718, 3856, 4056, 5302, 5577, 5784, 6266, 6864, 7436, 7953, 8112, 9399, 10604, 11154, 11568, 12532, 14872, 15906, 18798, 21208, 22308, 25064, 29744, 31812, 34463, 37596, 40729, 42416, 44616, 50128, 63624, 68926, 75192, 81458, 89232, 103389, 122187, 127248, 137852, 150384, 162916, 206778, 244374, 275704, 325832, 413556, 448019, 488748, 551408, 651664, 827112, 896038, 977496, 1344057, 1654224, 1792076, 1954992, 2688114, 3584152, 5376228, 7168304, 10752456, 21504912]

約数ペア:

[(1, 21504912), (2, 10752456), (3, 7168304), (4, 5376228), (6, 3584152), (8, 2688114), (11, 1954992), (12, 1792076), (13, 1654224), (16, 1344057), (22, 977496), (24, 896038), (26, 827112), (33, 651664), (39, 551408), (44, 488748), (48, 448019), (52, 413556), (66, 325832), (78, 275704), (88, 244374), (104, 206778), (132, 162916), (143, 150384), (156, 137852), (169, 127248), (176, 122187), (208, 103389), (241, 89232), (264, 81458), (286, 75192), (312, 68926), (338, 63624), (429, 50128), (482, 44616), (507, 42416), (528, 40729), (572, 37596), (624, 34463), (676, 31812), (723, 29744), (858, 25064), (964, 22308), (1014, 21208), (1144, 18798), (1352, 15906), (1446, 14872), (1716, 12532), (1859, 11568), (1928, 11154), (2028, 10604), (2288, 9399), (2651, 8112), (2704, 7953), (2892, 7436), (3133, 6864), (3432, 6266), (3718, 5784), (3856, 5577), (4056, 5302)]