18390294

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1$

素因数の和:131

約数の個数: 128

約数和(自身を含む): 49351680

約数和(自身を除く): 30961386

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 23, 26, 27, 34, 39, 46, 51, 54, 67, 69, 78, 102, 117, 134, 138, 153, 201, 207, 221, 234, 299, 306, 351, 391, 402, 414, 442, 459, 598, 603, 621, 663, 702, 782, 871, 897, 918, 1139, 1173, 1206, 1242, 1326, 1541, 1742, 1794, 1809, 1989, 2278, 2346, 2613, 2691, 3082, 3417, 3519, 3618, 3978, 4623, 5083, 5226, 5382, 5967, 6834, 7038, 7839, 8073, 9246, 10166, 10251, 10557, 11934, 13869, 14807, 15249, 15678, 16146, 20033, 20502, 21114, 23517, 26197, 27738, 29614, 30498, 30753, 40066, 41607, 44421, 45747, 47034, 52394, 60099, 61506, 78591, 83214, 88842, 91494, 120198, 133263, 137241, 157182, 180297, 235773, 266526, 274482, 340561, 360594, 399789, 471546, 540891, 681122, 707319, 799578, 1021683, 1081782, 1414638, 2043366, 3065049, 6130098, 9195147, 18390294]

約数ペア:

[(1, 18390294), (2, 9195147), (3, 6130098), (6, 3065049), (9, 2043366), (13, 1414638), (17, 1081782), (18, 1021683), (23, 799578), (26, 707319), (27, 681122), (34, 540891), (39, 471546), (46, 399789), (51, 360594), (54, 340561), (67, 274482), (69, 266526), (78, 235773), (102, 180297), (117, 157182), (134, 137241), (138, 133263), (153, 120198), (201, 91494), (207, 88842), (221, 83214), (234, 78591), (299, 61506), (306, 60099), (351, 52394), (391, 47034), (402, 45747), (414, 44421), (442, 41607), (459, 40066), (598, 30753), (603, 30498), (621, 29614), (663, 27738), (702, 26197), (782, 23517), (871, 21114), (897, 20502), (918, 20033), (1139, 16146), (1173, 15678), (1206, 15249), (1242, 14807), (1326, 13869), (1541, 11934), (1742, 10557), (1794, 10251), (1809, 10166), (1989, 9246), (2278, 8073), (2346, 7839), (2613, 7038), (2691, 6834), (3082, 5967), (3417, 5382), (3519, 5226), (3618, 5083), (3978, 4623)]