1331559

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{967}}^1$

素因数の和:996

約数の個数: 20

約数和(自身を含む): 2108304

約数和(自身を除く): 776745

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 967, 1377, 2901, 8703, 16439, 26109, 49317, 78327, 147951, 443853, 1331559]

約数ペア:

[(1, 1331559), (3, 443853), (9, 147951), (17, 78327), (27, 49317), (51, 26109), (81, 16439), (153, 8703), (459, 2901), (967, 1377)]