21579474

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{251}}^1$

素因数の和:375

約数の個数: 64

約数和(自身を含む): 52254720

約数和(自身を除く): 30675246

約数列:

[1, 2, 3, 6, 7, 14, 21, 23, 42, 46, 69, 89, 138, 161, 178, 251, 267, 322, 483, 502, 534, 623, 753, 966, 1246, 1506, 1757, 1869, 2047, 3514, 3738, 4094, 5271, 5773, 6141, 10542, 11546, 12282, 14329, 17319, 22339, 28658, 34638, 40411, 42987, 44678, 67017, 80822, 85974, 121233, 134034, 156373, 242466, 312746, 469119, 513797, 938238, 1027594, 1541391, 3082782, 3596579, 7193158, 10789737, 21579474]

約数ペア:

[(1, 21579474), (2, 10789737), (3, 7193158), (6, 3596579), (7, 3082782), (14, 1541391), (21, 1027594), (23, 938238), (42, 513797), (46, 469119), (69, 312746), (89, 242466), (138, 156373), (161, 134034), (178, 121233), (251, 85974), (267, 80822), (322, 67017), (483, 44678), (502, 42987), (534, 40411), (623, 34638), (753, 28658), (966, 22339), (1246, 17319), (1506, 14329), (1757, 12282), (1869, 11546), (2047, 10542), (3514, 6141), (3738, 5773), (4094, 5271)]