263968397

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{8423}}^1$

素因数の和:8489

約数の個数: 24

約数和(自身を含む): 340599168

約数和(自身を除く): 76630771

約数列:

[1, 7, 11, 37, 77, 121, 259, 407, 847, 2849, 4477, 8423, 31339, 58961, 92653, 311651, 648571, 1019183, 2181557, 3428161, 7134281, 23997127, 37709771, 263968397]

約数ペア:

[(1, 263968397), (7, 37709771), (11, 23997127), (37, 7134281), (77, 3428161), (121, 2181557), (259, 1019183), (407, 648571), (847, 311651), (2849, 92653), (4477, 58961), (8423, 31339)]