19913045

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{263}}^1\times {\mathrm{797}}^1$

素因数の和:1084

約数の個数: 16

約数和(自身を含む): 25280640

約数和(自身を除く): 5367595

約数列:

[1, 5, 19, 95, 263, 797, 1315, 3985, 4997, 15143, 24985, 75715, 209611, 1048055, 3982609, 19913045]

約数ペア:

[(1, 19913045), (5, 3982609), (19, 1048055), (95, 209611), (263, 75715), (797, 24985), (1315, 15143), (3985, 4997)]