215621119

素因数分解:

$7^3\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{409}}^1$

素因数の和:512

約数の個数: 32

約数和(自身を含む): 265680000

約数和(自身を除く): 50058881

約数列:

[1, 7, 29, 49, 53, 203, 343, 371, 409, 1421, 1537, 2597, 2863, 9947, 10759, 11861, 18179, 20041, 21677, 75313, 83027, 140287, 151739, 527191, 581189, 628633, 1062173, 4068323, 4400431, 7435211, 30803017, 215621119]

約数ペア:

[(1, 215621119), (7, 30803017), (29, 7435211), (49, 4400431), (53, 4068323), (203, 1062173), (343, 628633), (371, 581189), (409, 527191), (1421, 151739), (1537, 140287), (2597, 83027), (2863, 75313), (9947, 21677), (10759, 20041), (11861, 18179)]