19664528

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{94541}}^1$

素因数の和:94562

約数の個数: 20

約数和(自身を含む): 41031228

約数和(自身を除く): 21366700

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 94541, 189082, 378164, 756328, 1229033, 1512656, 2458066, 4916132, 9832264, 19664528]

約数ペア:

[(1, 19664528), (2, 9832264), (4, 4916132), (8, 2458066), (13, 1512656), (16, 1229033), (26, 756328), (52, 378164), (104, 189082), (208, 94541)]