21267387

素因数分解:

$3^3\times {\mathrm{23}}^2\times {\mathrm{1489}}^1$

素因数の和:1544

約数の個数: 24

約数和(自身を含む): 32958800

約数和(自身を除く): 11691413

約数列:

[1, 3, 9, 23, 27, 69, 207, 529, 621, 1489, 1587, 4467, 4761, 13401, 14283, 34247, 40203, 102741, 308223, 787681, 924669, 2363043, 7089129, 21267387]

約数ペア:

[(1, 21267387), (3, 7089129), (9, 2363043), (23, 924669), (27, 787681), (69, 308223), (207, 102741), (529, 40203), (621, 34247), (1489, 14283), (1587, 13401), (4467, 4761)]