21449907

素因数分解:

$3^3\times {\mathrm{47}}^1\times {\mathrm{16903}}^1$

素因数の和:16959

約数の個数: 16

約数和(自身を含む): 32455680

約数和(自身を除く): 11005773

約数列:

[1, 3, 9, 27, 47, 141, 423, 1269, 16903, 50709, 152127, 456381, 794441, 2383323, 7149969, 21449907]

約数ペア:

[(1, 21449907), (3, 7149969), (9, 2383323), (27, 794441), (47, 456381), (141, 152127), (423, 50709), (1269, 16903)]