81936428

素因数分解:

$2^2\times 7^2\times {\mathrm{418043}}^1$

素因数の和:418061

約数の個数: 18

約数和(自身を含む): 166799556

約数和(自身を除く): 84863128

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 418043, 836086, 1672172, 2926301, 5852602, 11705204, 20484107, 40968214, 81936428]

約数ペア:

[(1, 81936428), (2, 40968214), (4, 20484107), (7, 11705204), (14, 5852602), (28, 2926301), (49, 1672172), (98, 836086), (196, 418043)]