21363561

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{18401}}^1$

素因数の和:18453

約数の個数: 16

約数和(自身を含む): 32387520

約数和(自身を除く): 11023959

約数列:

[1, 3, 9, 27, 43, 129, 387, 1161, 18401, 55203, 165609, 496827, 791243, 2373729, 7121187, 21363561]

約数ペア:

[(1, 21363561), (3, 7121187), (9, 2373729), (27, 791243), (43, 496827), (129, 165609), (387, 55203), (1161, 18401)]