1971296487

素因数分解:

$3^3\times {\mathrm{101}}^1\times {\mathrm{722881}}^1$

素因数の和:722991

約数の個数: 16

約数和(自身を含む): 2949358560

約数和(自身を除く): 978062073

約数列:

[1, 3, 9, 27, 101, 303, 909, 2727, 722881, 2168643, 6505929, 19517787, 73010981, 219032943, 657098829, 1971296487]

約数ペア:

[(1, 1971296487), (3, 657098829), (9, 219032943), (27, 73010981), (101, 19517787), (303, 6505929), (909, 2168643), (2727, 722881)]