1981827

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{569}}^1$

素因数の和:624

約数の個数: 20

約数和(自身を含む): 3034680

約数和(自身を除く): 1052853

約数列:

[1, 3, 9, 27, 43, 81, 129, 387, 569, 1161, 1707, 3483, 5121, 15363, 24467, 46089, 73401, 220203, 660609, 1981827]

約数ペア:

[(1, 1981827), (3, 660609), (9, 220203), (27, 73401), (43, 46089), (81, 24467), (129, 15363), (387, 5121), (569, 3483), (1161, 1707)]