206520561

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{557}}^1\times {\mathrm{3169}}^1$

素因数の和:3745

約数の個数: 24

約数和(自身を含む): 321932520

約数和(自身を除く): 115411959

約数列:

[1, 3, 9, 13, 39, 117, 557, 1671, 3169, 5013, 7241, 9507, 21723, 28521, 41197, 65169, 123591, 370773, 1765133, 5295399, 15886197, 22946729, 68840187, 206520561]

約数ペア:

[(1, 206520561), (3, 68840187), (9, 22946729), (13, 15886197), (39, 5295399), (117, 1765133), (557, 370773), (1671, 123591), (3169, 65169), (5013, 41197), (7241, 28521), (9507, 21723)]