20477219

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{677}}^1$

素因数の和:862

約数の個数: 16

約数和(自身を含む): 24408000

約数和(自身を除く): 3930781

約数列:

[1, 7, 29, 149, 203, 677, 1043, 4321, 4739, 19633, 30247, 100873, 137431, 706111, 2925317, 20477219]

約数ペア:

[(1, 20477219), (7, 2925317), (29, 706111), (149, 137431), (203, 100873), (677, 30247), (1043, 19633), (4321, 4739)]