21843367

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{647}}^1$

素因数の和:727

約数の個数: 24

約数和(自身を含む): 27923616

約数和(自身を除く): 6080249

約数列:

[1, 7, 13, 49, 53, 91, 371, 637, 647, 689, 2597, 4529, 4823, 8411, 31703, 33761, 34291, 58877, 240037, 412139, 445783, 1680259, 3120481, 21843367]

約数ペア:

[(1, 21843367), (7, 3120481), (13, 1680259), (49, 445783), (53, 412139), (91, 240037), (371, 58877), (637, 34291), (647, 33761), (689, 31703), (2597, 8411), (4529, 4823)]