398464703

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{1289}}^1$

素因数の和:1431

約数の個数: 32

約数和(自身を含む): 508569600

約数和(自身を除く): 110104897

約数列:

[1, 7, 13, 43, 79, 91, 301, 553, 559, 1027, 1289, 3397, 3913, 7189, 9023, 16757, 23779, 44161, 55427, 101831, 117299, 309127, 387989, 712817, 720551, 1323803, 4378733, 5043857, 9266621, 30651131, 56923529, 398464703]

約数ペア:

[(1, 398464703), (7, 56923529), (13, 30651131), (43, 9266621), (79, 5043857), (91, 4378733), (301, 1323803), (553, 720551), (559, 712817), (1027, 387989), (1289, 309127), (3397, 117299), (3913, 101831), (7189, 55427), (9023, 44161), (16757, 23779)]