20281904

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{43711}}^1$

素因数の和:43748

約数の個数: 20

約数和(自身を含む): 40652160

約数和(自身を除く): 20370256

約数列:

[1, 2, 4, 8, 16, 29, 58, 116, 232, 464, 43711, 87422, 174844, 349688, 699376, 1267619, 2535238, 5070476, 10140952, 20281904]

約数ペア:

[(1, 20281904), (2, 10140952), (4, 5070476), (8, 2535238), (16, 1267619), (29, 699376), (58, 349688), (116, 174844), (232, 87422), (464, 43711)]