21215712

素因数分解:

$2^5\times 3^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{241}}^1$

素因数の和:392

約数の個数: 96

約数和(自身を含む): 64399104

約数和(自身を除く): 43183392

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 84, 96, 112, 131, 168, 224, 241, 262, 336, 393, 482, 524, 672, 723, 786, 917, 964, 1048, 1446, 1572, 1687, 1834, 1928, 2096, 2751, 2892, 3144, 3374, 3668, 3856, 4192, 5061, 5502, 5784, 6288, 6748, 7336, 7712, 10122, 11004, 11568, 12576, 13496, 14672, 20244, 22008, 23136, 26992, 29344, 31571, 40488, 44016, 53984, 63142, 80976, 88032, 94713, 126284, 161952, 189426, 220997, 252568, 378852, 441994, 505136, 662991, 757704, 883988, 1010272, 1325982, 1515408, 1767976, 2651964, 3030816, 3535952, 5303928, 7071904, 10607856, 21215712]

約数ペア:

[(1, 21215712), (2, 10607856), (3, 7071904), (4, 5303928), (6, 3535952), (7, 3030816), (8, 2651964), (12, 1767976), (14, 1515408), (16, 1325982), (21, 1010272), (24, 883988), (28, 757704), (32, 662991), (42, 505136), (48, 441994), (56, 378852), (84, 252568), (96, 220997), (112, 189426), (131, 161952), (168, 126284), (224, 94713), (241, 88032), (262, 80976), (336, 63142), (393, 53984), (482, 44016), (524, 40488), (672, 31571), (723, 29344), (786, 26992), (917, 23136), (964, 22008), (1048, 20244), (1446, 14672), (1572, 13496), (1687, 12576), (1834, 11568), (1928, 11004), (2096, 10122), (2751, 7712), (2892, 7336), (3144, 6748), (3374, 6288), (3668, 5784), (3856, 5502), (4192, 5061)]