128468991

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{197341}}^1$

素因数の和:197382

約数の個数: 16

約数和(自身を含む): 202078208

約数和(自身を除く): 73609217

約数列:

[1, 3, 7, 21, 31, 93, 217, 651, 197341, 592023, 1381387, 4144161, 6117571, 18352713, 42822997, 128468991]

約数ペア:

[(1, 128468991), (3, 42822997), (7, 18352713), (21, 6117571), (31, 4144161), (93, 1381387), (217, 592023), (651, 197341)]