19712816

素因数分解:

$2^4\times {\mathrm{1103}}^1\times {\mathrm{1117}}^1$

素因数の和:2228

約数の個数: 20

約数和(自身を含む): 38262432

約数和(自身を除く): 18549616

約数列:

[1, 2, 4, 8, 16, 1103, 1117, 2206, 2234, 4412, 4468, 8824, 8936, 17648, 17872, 1232051, 2464102, 4928204, 9856408, 19712816]

約数ペア:

[(1, 19712816), (2, 9856408), (4, 4928204), (8, 2464102), (16, 1232051), (1103, 17872), (1117, 17648), (2206, 8936), (2234, 8824), (4412, 4468)]