206529981

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{517619}}^1$

素因数の和:517648

約数の個数: 16

約数和(自身を含む): 331276800

約数和(自身を除く): 124746819

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 517619, 1552857, 3623333, 9834761, 10869999, 29504283, 68843327, 206529981]

約数ペア:

[(1, 206529981), (3, 68843327), (7, 29504283), (19, 10869999), (21, 9834761), (57, 3623333), (133, 1552857), (399, 517619)]