21328866

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1321}}^1$

素因数の和:1368

約数の個数: 64

約数和(自身を含む): 53303040

約数和(自身を除く): 31974174

約数列:

[1, 2, 3, 6, 9, 13, 18, 23, 26, 27, 39, 46, 54, 69, 78, 117, 138, 207, 234, 299, 351, 414, 598, 621, 702, 897, 1242, 1321, 1794, 2642, 2691, 3963, 5382, 7926, 8073, 11889, 16146, 17173, 23778, 30383, 34346, 35667, 51519, 60766, 71334, 91149, 103038, 154557, 182298, 273447, 309114, 394979, 463671, 546894, 789958, 820341, 927342, 1184937, 1640682, 2369874, 3554811, 7109622, 10664433, 21328866]

約数ペア:

[(1, 21328866), (2, 10664433), (3, 7109622), (6, 3554811), (9, 2369874), (13, 1640682), (18, 1184937), (23, 927342), (26, 820341), (27, 789958), (39, 546894), (46, 463671), (54, 394979), (69, 309114), (78, 273447), (117, 182298), (138, 154557), (207, 103038), (234, 91149), (299, 71334), (351, 60766), (414, 51519), (598, 35667), (621, 34346), (702, 30383), (897, 23778), (1242, 17173), (1321, 16146), (1794, 11889), (2642, 8073), (2691, 7926), (3963, 5382)]