18120257788

素因数分解:

$2^2\times {\mathrm{197}}^1\times {\mathrm{1181}}^1\times {\mathrm{19471}}^1$

素因数の和:20853

約数の個数: 24

約数和(自身を含む): 31900042944

約数和(自身を除く): 13779785156

約数列:

[1, 2, 4, 197, 394, 788, 1181, 2362, 4724, 19471, 38942, 77884, 232657, 465314, 930628, 3835787, 7671574, 15343148, 22995251, 45990502, 91981004, 4530064447, 9060128894, 18120257788]

約数ペア:

[(1, 18120257788), (2, 9060128894), (4, 4530064447), (197, 91981004), (394, 45990502), (788, 22995251), (1181, 15343148), (2362, 7671574), (4724, 3835787), (19471, 930628), (38942, 465314), (77884, 232657)]