21044268

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{37}}^2\times {\mathrm{61}}^1$

素因数の和:152

約数の個数: 108

約数和(自身を含む): 63506352

約数和(自身を除く): 42462084

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 37, 42, 61, 63, 74, 84, 111, 122, 126, 148, 183, 222, 244, 252, 259, 333, 366, 427, 444, 518, 549, 666, 732, 777, 854, 1036, 1098, 1281, 1332, 1369, 1554, 1708, 2196, 2257, 2331, 2562, 2738, 3108, 3843, 4107, 4514, 4662, 5124, 5476, 6771, 7686, 8214, 9028, 9324, 9583, 12321, 13542, 15372, 15799, 16428, 19166, 20313, 24642, 27084, 28749, 31598, 38332, 40626, 47397, 49284, 57498, 63196, 81252, 83509, 86247, 94794, 114996, 142191, 167018, 172494, 189588, 250527, 284382, 334036, 344988, 501054, 568764, 584563, 751581, 1002108, 1169126, 1503162, 1753689, 2338252, 3006324, 3507378, 5261067, 7014756, 10522134, 21044268]

約数ペア:

[(1, 21044268), (2, 10522134), (3, 7014756), (4, 5261067), (6, 3507378), (7, 3006324), (9, 2338252), (12, 1753689), (14, 1503162), (18, 1169126), (21, 1002108), (28, 751581), (36, 584563), (37, 568764), (42, 501054), (61, 344988), (63, 334036), (74, 284382), (84, 250527), (111, 189588), (122, 172494), (126, 167018), (148, 142191), (183, 114996), (222, 94794), (244, 86247), (252, 83509), (259, 81252), (333, 63196), (366, 57498), (427, 49284), (444, 47397), (518, 40626), (549, 38332), (666, 31598), (732, 28749), (777, 27084), (854, 24642), (1036, 20313), (1098, 19166), (1281, 16428), (1332, 15799), (1369, 15372), (1554, 13542), (1708, 12321), (2196, 9583), (2257, 9324), (2331, 9028), (2562, 8214), (2738, 7686), (3108, 6771), (3843, 5476), (4107, 5124), (4514, 4662)]