21000000546

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{805153}}^1$

素因数の和:805197

約数の個数: 80

約数和(自身を含む): 56116013184

約数和(自身を除く): 35116012638

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 23, 27, 42, 46, 54, 63, 69, 81, 126, 138, 161, 162, 189, 207, 322, 378, 414, 483, 567, 621, 966, 1134, 1242, 1449, 1863, 2898, 3726, 4347, 8694, 13041, 26082, 805153, 1610306, 2415459, 4830918, 5636071, 7246377, 11272142, 14492754, 16908213, 18518519, 21739131, 33816426, 37037038, 43478262, 50724639, 55555557, 65217393, 101449278, 111111114, 129629633, 130434786, 152173917, 166666671, 259259266, 304347834, 333333342, 388888899, 456521751, 500000013, 777777798, 913043502, 1000000026, 1166666697, 1500000039, 2333333394, 3000000078, 3500000091, 7000000182, 10500000273, 21000000546]

約数ペア:

[(1, 21000000546), (2, 10500000273), (3, 7000000182), (6, 3500000091), (7, 3000000078), (9, 2333333394), (14, 1500000039), (18, 1166666697), (21, 1000000026), (23, 913043502), (27, 777777798), (42, 500000013), (46, 456521751), (54, 388888899), (63, 333333342), (69, 304347834), (81, 259259266), (126, 166666671), (138, 152173917), (161, 130434786), (162, 129629633), (189, 111111114), (207, 101449278), (322, 65217393), (378, 55555557), (414, 50724639), (483, 43478262), (567, 37037038), (621, 33816426), (966, 21739131), (1134, 18518519), (1242, 16908213), (1449, 14492754), (1863, 11272142), (2898, 7246377), (3726, 5636071), (4347, 4830918), (8694, 2415459), (13041, 1610306), (26082, 805153)]