21495138

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{251}}^1\times {\mathrm{2039}}^1$

素因数の和:2302

約数の個数: 32

約数和(自身を含む): 49351680

約数和(自身を除く): 27856542

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 251, 502, 753, 1506, 1757, 2039, 3514, 4078, 5271, 6117, 10542, 12234, 14273, 28546, 42819, 85638, 511789, 1023578, 1535367, 3070734, 3582523, 7165046, 10747569, 21495138]

約数ペア:

[(1, 21495138), (2, 10747569), (3, 7165046), (6, 3582523), (7, 3070734), (14, 1535367), (21, 1023578), (42, 511789), (251, 85638), (502, 42819), (753, 28546), (1506, 14273), (1757, 12234), (2039, 10542), (3514, 6117), (4078, 5271)]