19713872

素因数分解:

$2^4\times {\mathrm{163}}^1\times {\mathrm{7559}}^1$

素因数の和:7730

約数の個数: 20

約数和(自身を含む): 38435040

約数和(自身を除く): 18721168

約数列:

[1, 2, 4, 8, 16, 163, 326, 652, 1304, 2608, 7559, 15118, 30236, 60472, 120944, 1232117, 2464234, 4928468, 9856936, 19713872]

約数ペア:

[(1, 19713872), (2, 9856936), (4, 4928468), (8, 2464234), (16, 1232117), (163, 120944), (326, 60472), (652, 30236), (1304, 15118), (2608, 7559)]