19828719

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{5693}}^1$

素因数の和:5748

約数の個数: 20

約数和(自身を含む): 30314856

約数和(自身を除く): 10486137

約数列:

[1, 3, 9, 27, 43, 81, 129, 387, 1161, 3483, 5693, 17079, 51237, 153711, 244799, 461133, 734397, 2203191, 6609573, 19828719]

約数ペア:

[(1, 19828719), (3, 6609573), (9, 2203191), (27, 734397), (43, 461133), (81, 244799), (129, 153711), (387, 51237), (1161, 17079), (3483, 5693)]