19391398

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{103}}^1\times {\mathrm{557}}^1$

素因数の和:688

約数の個数: 24

約数和(自身を含む): 31859568

約数和(自身を除く): 12468170

約数列:

[1, 2, 13, 26, 103, 169, 206, 338, 557, 1114, 1339, 2678, 7241, 14482, 17407, 34814, 57371, 94133, 114742, 188266, 745823, 1491646, 9695699, 19391398]

約数ペア:

[(1, 19391398), (2, 9695699), (13, 1491646), (26, 745823), (103, 188266), (169, 114742), (206, 94133), (338, 57371), (557, 34814), (1114, 17407), (1339, 14482), (2678, 7241)]