19101719

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{191}}^1$

素因数の和:375

約数の個数: 24

約数和(自身を含む): 24208128

約数和(自身を除く): 5106409

約数列:

[1, 7, 13, 49, 91, 157, 191, 637, 1099, 1337, 2041, 2483, 7693, 9359, 14287, 17381, 29987, 100009, 121667, 209909, 389831, 1469363, 2728817, 19101719]

約数ペア:

[(1, 19101719), (7, 2728817), (13, 1469363), (49, 389831), (91, 209909), (157, 121667), (191, 100009), (637, 29987), (1099, 17381), (1337, 14287), (2041, 9359), (2483, 7693)]