66821812

素因数分解:

$2^2\times {\mathrm{127}}^1\times {\mathrm{199}}^1\times {\mathrm{661}}^1$

素因数の和:991

約数の個数: 24

約数和(自身を含む): 118630400

約数和(自身を除く): 51808588

約数列:

[1, 2, 4, 127, 199, 254, 398, 508, 661, 796, 1322, 2644, 25273, 50546, 83947, 101092, 131539, 167894, 263078, 335788, 526156, 16705453, 33410906, 66821812]

約数ペア:

[(1, 66821812), (2, 33410906), (4, 16705453), (127, 526156), (199, 335788), (254, 263078), (398, 167894), (508, 131539), (661, 101092), (796, 83947), (1322, 50546), (2644, 25273)]