648826321

素因数分解:

${\mathrm{11}}^2\times {\mathrm{13}}^2\times {\mathrm{31729}}^1$

素因数の和:31777

約数の個数: 18

約数和(自身を含む): 772276470

約数和(自身を除く): 123450149

約数列:

[1, 11, 13, 121, 143, 169, 1573, 1859, 20449, 31729, 349019, 412477, 3839209, 4537247, 5362201, 49909717, 58984211, 648826321]

約数ペア:

[(1, 648826321), (11, 58984211), (13, 49909717), (121, 5362201), (143, 4537247), (169, 3839209), (1573, 412477), (1859, 349019), (20449, 31729)]