398937

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{157}}^1$

素因数の和:189

約数の個数: 24

約数和(自身を含む): 672448

約数和(自身を除く): 273511

約数列:

[1, 3, 7, 11, 21, 33, 77, 121, 157, 231, 363, 471, 847, 1099, 1727, 2541, 3297, 5181, 12089, 18997, 36267, 56991, 132979, 398937]

約数ペア:

[(1, 398937), (3, 132979), (7, 56991), (11, 36267), (21, 18997), (33, 12089), (77, 5181), (121, 3297), (157, 2541), (231, 1727), (363, 1099), (471, 847)]