12971931

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{251}}^1$

素因数の和:391

約数の個数: 32

約数和(自身を含む): 20901888

約数和(自身を除く): 7929957

約数列:

[1, 3, 7, 21, 23, 69, 107, 161, 251, 321, 483, 749, 753, 1757, 2247, 2461, 5271, 5773, 7383, 17227, 17319, 26857, 40411, 51681, 80571, 121233, 187999, 563997, 617711, 1853133, 4323977, 12971931]

約数ペア:

[(1, 12971931), (3, 4323977), (7, 1853133), (21, 617711), (23, 563997), (69, 187999), (107, 121233), (161, 80571), (251, 51681), (321, 40411), (483, 26857), (749, 17319), (753, 17227), (1757, 7383), (2247, 5773), (2461, 5271)]