18716438

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{16741}}^1$

素因数の和:16799

約数の個数: 16

約数和(自身を含む): 30939216

約数和(自身を除く): 12222778

約数列:

[1, 2, 13, 26, 43, 86, 559, 1118, 16741, 33482, 217633, 435266, 719863, 1439726, 9358219, 18716438]

約数ペア:

[(1, 18716438), (2, 9358219), (13, 1439726), (26, 719863), (43, 435266), (86, 217633), (559, 33482), (1118, 16741)]