19539485

素因数分解:

$5^1\times 7^2\times {\mathrm{173}}^1\times {\mathrm{461}}^1$

素因数の和:653

約数の個数: 24

約数和(自身を含む): 27492696

約数和(自身を除く): 7953211

約数列:

[1, 5, 7, 35, 49, 173, 245, 461, 865, 1211, 2305, 3227, 6055, 8477, 16135, 22589, 42385, 79753, 112945, 398765, 558271, 2791355, 3907897, 19539485]

約数ペア:

[(1, 19539485), (5, 3907897), (7, 2791355), (35, 558271), (49, 398765), (173, 112945), (245, 79753), (461, 42385), (865, 22589), (1211, 16135), (2305, 8477), (3227, 6055)]