18669818

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{7333}}^1$

素因数の和:7421

約数の個数: 16

約数和(自身を含む): 29922720

約数和(自身を除く): 11252902

約数列:

[1, 2, 19, 38, 67, 134, 1273, 2546, 7333, 14666, 139327, 278654, 491311, 982622, 9334909, 18669818]

約数ペア:

[(1, 18669818), (2, 9334909), (19, 982622), (38, 491311), (67, 278654), (134, 139327), (1273, 14666), (2546, 7333)]