21063408

素因数分解:

$2^4\times 3^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{311}}^1$

素因数の和:422

約数の個数: 80

約数和(自身を含む): 58496256

約数和(自身を除く): 37432848

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 17, 24, 34, 48, 51, 68, 83, 102, 136, 166, 204, 249, 272, 311, 332, 408, 498, 622, 664, 816, 933, 996, 1244, 1328, 1411, 1866, 1992, 2488, 2822, 3732, 3984, 4233, 4976, 5287, 5644, 7464, 8466, 10574, 11288, 14928, 15861, 16932, 21148, 22576, 25813, 31722, 33864, 42296, 51626, 63444, 67728, 77439, 84592, 103252, 126888, 154878, 206504, 253776, 309756, 413008, 438821, 619512, 877642, 1239024, 1316463, 1755284, 2632926, 3510568, 5265852, 7021136, 10531704, 21063408]

約数ペア:

[(1, 21063408), (2, 10531704), (3, 7021136), (4, 5265852), (6, 3510568), (8, 2632926), (12, 1755284), (16, 1316463), (17, 1239024), (24, 877642), (34, 619512), (48, 438821), (51, 413008), (68, 309756), (83, 253776), (102, 206504), (136, 154878), (166, 126888), (204, 103252), (249, 84592), (272, 77439), (311, 67728), (332, 63444), (408, 51626), (498, 42296), (622, 33864), (664, 31722), (816, 25813), (933, 22576), (996, 21148), (1244, 16932), (1328, 15861), (1411, 14928), (1866, 11288), (1992, 10574), (2488, 8466), (2822, 7464), (3732, 5644), (3984, 5287), (4233, 4976)]