20700784

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{99523}}^1$

素因数の和:99544

約数の個数: 20

約数和(自身を含む): 43193416

約数和(自身を除く): 22492632

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 99523, 199046, 398092, 796184, 1293799, 1592368, 2587598, 5175196, 10350392, 20700784]

約数ペア:

[(1, 20700784), (2, 10350392), (4, 5175196), (8, 2587598), (13, 1592368), (16, 1293799), (26, 796184), (52, 398092), (104, 199046), (208, 99523)]