1277886057

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{1644641}}^1$

素因数の和:1644688

約数の個数: 16

約数和(自身を含む): 1999884672

約数和(自身を除く): 721998615

約数列:

[1, 3, 7, 21, 37, 111, 259, 777, 1644641, 4933923, 11512487, 34537461, 60851717, 182555151, 425962019, 1277886057]

約数ペア:

[(1, 1277886057), (3, 425962019), (7, 182555151), (21, 60851717), (37, 34537461), (111, 11512487), (259, 4933923), (777, 1644641)]