721000813

素因数分解:

${\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{1123}}^1$

素因数の和:1309

約数の個数: 24

約数和(自身を含む): 814540320

約数和(自身を除く): 93539507

約数列:

[1, 13, 29, 131, 169, 377, 1123, 1703, 3799, 4901, 14599, 22139, 32567, 49387, 147113, 189787, 423371, 642031, 1912469, 4266277, 5503823, 24862097, 55461601, 721000813]

約数ペア:

[(1, 721000813), (13, 55461601), (29, 24862097), (131, 5503823), (169, 4266277), (377, 1912469), (1123, 642031), (1703, 423371), (3799, 189787), (4901, 147113), (14599, 49387), (22139, 32567)]