7921749

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{139}}^1\times {\mathrm{157}}^1$

素因数の和:321

約数の個数: 24

約数和(自身を含む): 11767840

約数和(自身を除く): 3846091

約数列:

[1, 3, 11, 33, 121, 139, 157, 363, 417, 471, 1529, 1727, 4587, 5181, 16819, 18997, 21823, 50457, 56991, 65469, 240053, 720159, 2640583, 7921749]

約数ペア:

[(1, 7921749), (3, 2640583), (11, 720159), (33, 240053), (121, 65469), (139, 56991), (157, 50457), (363, 21823), (417, 18997), (471, 16819), (1529, 5181), (1727, 4587)]