21956144

素因数分解:

$2^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1$

素因数の和:202

約数の個数: 80

約数和(自身を含む): 51330048

約数和(自身を除く): 29373904

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 43, 47, 56, 86, 94, 97, 112, 172, 188, 194, 301, 329, 344, 376, 388, 602, 658, 679, 688, 752, 776, 1204, 1316, 1358, 1552, 2021, 2408, 2632, 2716, 4042, 4171, 4559, 4816, 5264, 5432, 8084, 8342, 9118, 10864, 14147, 16168, 16684, 18236, 28294, 29197, 31913, 32336, 33368, 36472, 56588, 58394, 63826, 66736, 72944, 113176, 116788, 127652, 196037, 226352, 233576, 255304, 392074, 467152, 510608, 784148, 1372259, 1568296, 2744518, 3136592, 5489036, 10978072, 21956144]

約数ペア:

[(1, 21956144), (2, 10978072), (4, 5489036), (7, 3136592), (8, 2744518), (14, 1568296), (16, 1372259), (28, 784148), (43, 510608), (47, 467152), (56, 392074), (86, 255304), (94, 233576), (97, 226352), (112, 196037), (172, 127652), (188, 116788), (194, 113176), (301, 72944), (329, 66736), (344, 63826), (376, 58394), (388, 56588), (602, 36472), (658, 33368), (679, 32336), (688, 31913), (752, 29197), (776, 28294), (1204, 18236), (1316, 16684), (1358, 16168), (1552, 14147), (2021, 10864), (2408, 9118), (2632, 8342), (2716, 8084), (4042, 5432), (4171, 5264), (4559, 4816)]