81356548

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{223507}}^1$

素因数の和:223531

約数の個数: 24

約数和(自身を含む): 175230272

約数和(自身を除く): 93873724

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 223507, 447014, 894028, 1564549, 2905591, 3129098, 5811182, 6258196, 11622364, 20339137, 40678274, 81356548]

約数ペア:

[(1, 81356548), (2, 40678274), (4, 20339137), (7, 11622364), (13, 6258196), (14, 5811182), (26, 3129098), (28, 2905591), (52, 1564549), (91, 894028), (182, 447014), (364, 223507)]