19992856

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{192239}}^1$

素因数の和:192258

約数の個数: 16

約数和(自身を含む): 40370400

約数和(自身を除く): 20377544

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 192239, 384478, 768956, 1537912, 2499107, 4998214, 9996428, 19992856]

約数ペア:

[(1, 19992856), (2, 9996428), (4, 4998214), (8, 2499107), (13, 1537912), (26, 768956), (52, 384478), (104, 192239)]