9947343

素因数分解:

$3^1\times 7^4\times {\mathrm{1381}}^1$

素因数の和:1412

約数の個数: 20

約数和(自身を含む): 15483928

約数和(自身を除く): 5536585

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 1381, 2401, 4143, 7203, 9667, 29001, 67669, 203007, 473683, 1421049, 3315781, 9947343]

約数ペア:

[(1, 9947343), (3, 3315781), (7, 1421049), (21, 473683), (49, 203007), (147, 67669), (343, 29001), (1029, 9667), (1381, 7203), (2401, 4143)]