1689741

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{907}}^1$

素因数の和:942

約数の個数: 20

約数和(自身を含む): 2636832

約数和(自身を除く): 947091

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 907, 1863, 2721, 8163, 20861, 24489, 62583, 73467, 187749, 563247, 1689741]

約数ペア:

[(1, 1689741), (3, 563247), (9, 187749), (23, 73467), (27, 62583), (69, 24489), (81, 20861), (207, 8163), (621, 2721), (907, 1863)]