21927549

素因数分解:

$3^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{3469}}^1$

素因数の和:3529

約数の個数: 24

約数和(自身を含む): 34811040

約数和(自身を除く): 12883491

約数列:

[1, 3, 7, 21, 43, 49, 129, 147, 301, 903, 2107, 3469, 6321, 10407, 24283, 72849, 149167, 169981, 447501, 509943, 1044169, 3132507, 7309183, 21927549]

約数ペア:

[(1, 21927549), (3, 7309183), (7, 3132507), (21, 1044169), (43, 509943), (49, 447501), (129, 169981), (147, 149167), (301, 72849), (903, 24283), (2107, 10407), (3469, 6321)]