18992990

素因数分解:

$2^1\times 5^1\times {\mathrm{937}}^1\times {\mathrm{2027}}^1$

素因数の和:2971

約数の個数: 16

約数和(自身を含む): 34240752

約数和(自身を除く): 15247762

約数列:

[1, 2, 5, 10, 937, 1874, 2027, 4054, 4685, 9370, 10135, 20270, 1899299, 3798598, 9496495, 18992990]

約数ペア:

[(1, 18992990), (2, 9496495), (5, 3798598), (10, 1899299), (937, 20270), (1874, 10135), (2027, 9370), (4054, 4685)]