19404931

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{743}}^1$

素因数の和:811

約数の個数: 24

約数和(自身を含む): 24935904

約数和(自身を除く): 5530973

約数列:

[1, 7, 13, 41, 49, 91, 287, 533, 637, 743, 2009, 3731, 5201, 9659, 26117, 30463, 36407, 67613, 213241, 396019, 473291, 1492687, 2772133, 19404931]

約数ペア:

[(1, 19404931), (7, 2772133), (13, 1492687), (41, 473291), (49, 396019), (91, 213241), (287, 67613), (533, 36407), (637, 30463), (743, 26117), (2009, 9659), (3731, 5201)]