21032312

素因数分解:

$2^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:252

約数の個数: 64

約数和(自身を含む): 47139840

約数和(自身を除く): 26107528

約数列:

[1, 2, 4, 7, 8, 14, 28, 47, 56, 61, 94, 122, 131, 188, 244, 262, 329, 376, 427, 488, 524, 658, 854, 917, 1048, 1316, 1708, 1834, 2632, 2867, 3416, 3668, 5734, 6157, 7336, 7991, 11468, 12314, 15982, 20069, 22936, 24628, 31964, 40138, 43099, 49256, 55937, 63928, 80276, 86198, 111874, 160552, 172396, 223748, 344792, 375577, 447496, 751154, 1502308, 2629039, 3004616, 5258078, 10516156, 21032312]

約数ペア:

[(1, 21032312), (2, 10516156), (4, 5258078), (7, 3004616), (8, 2629039), (14, 1502308), (28, 751154), (47, 447496), (56, 375577), (61, 344792), (94, 223748), (122, 172396), (131, 160552), (188, 111874), (244, 86198), (262, 80276), (329, 63928), (376, 55937), (427, 49256), (488, 43099), (524, 40138), (658, 31964), (854, 24628), (917, 22936), (1048, 20069), (1316, 15982), (1708, 12314), (1834, 11468), (2632, 7991), (2867, 7336), (3416, 6157), (3668, 5734)]