18738416

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{13159}}^1$

素因数の和:13256

約数の個数: 20

約数和(自身を含む): 36716400

約数和(自身を除く): 17977984

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 712, 1424, 13159, 26318, 52636, 105272, 210544, 1171151, 2342302, 4684604, 9369208, 18738416]

約数ペア:

[(1, 18738416), (2, 9369208), (4, 4684604), (8, 2342302), (16, 1171151), (89, 210544), (178, 105272), (356, 52636), (712, 26318), (1424, 13159)]