1991569503

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{809}}^1\times {\mathrm{10657}}^1$

素因数の和:11487

約数の個数: 32

約数和(自身を含む): 3315064320

約数和(自身を除く): 1323494817

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 809, 2427, 5663, 8899, 10657, 16989, 26697, 31971, 62293, 74599, 117227, 186879, 223797, 351681, 820589, 2461767, 8621513, 25864539, 60350591, 94836643, 181051773, 284509929, 663856501, 1991569503]

約数ペア:

[(1, 1991569503), (3, 663856501), (7, 284509929), (11, 181051773), (21, 94836643), (33, 60350591), (77, 25864539), (231, 8621513), (809, 2461767), (2427, 820589), (5663, 351681), (8899, 223797), (10657, 186879), (16989, 117227), (26697, 74599), (31971, 62293)]