217445553

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{206501}}^1$

素因数の和:206526

約数の個数: 20

約数和(自身を含む): 349814388

約数和(自身を除く): 132368835

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 206501, 619503, 1858509, 2684513, 5575527, 8053539, 16726581, 24160617, 72481851, 217445553]

約数ペア:

[(1, 217445553), (3, 72481851), (9, 24160617), (13, 16726581), (27, 8053539), (39, 5575527), (81, 2684513), (117, 1858509), (351, 619503), (1053, 206501)]