20419544

素因数分解:

$2^3\times {\mathrm{103}}^1\times {\mathrm{24781}}^1$

素因数の和:24890

約数の個数: 16

約数和(自身を含む): 38659920

約数和(自身を除く): 18240376

約数列:

[1, 2, 4, 8, 103, 206, 412, 824, 24781, 49562, 99124, 198248, 2552443, 5104886, 10209772, 20419544]

約数ペア:

[(1, 20419544), (2, 10209772), (4, 5104886), (8, 2552443), (103, 198248), (206, 99124), (412, 49562), (824, 24781)]