18157424

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{311}}^1$

素因数の和:449

約数の個数: 40

約数和(自身を含む): 36560160

約数和(自身を除く): 18402736

約数列:

[1, 2, 4, 8, 16, 41, 82, 89, 164, 178, 311, 328, 356, 622, 656, 712, 1244, 1424, 2488, 3649, 4976, 7298, 12751, 14596, 25502, 27679, 29192, 51004, 55358, 58384, 102008, 110716, 204016, 221432, 442864, 1134839, 2269678, 4539356, 9078712, 18157424]

約数ペア:

[(1, 18157424), (2, 9078712), (4, 4539356), (8, 2269678), (16, 1134839), (41, 442864), (82, 221432), (89, 204016), (164, 110716), (178, 102008), (311, 58384), (328, 55358), (356, 51004), (622, 29192), (656, 27679), (712, 25502), (1244, 14596), (1424, 12751), (2488, 7298), (3649, 4976)]