28907739

素因数分解:

$3^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{3557}}^1$

素因数の和:3616

約数の個数: 32

約数和(自身を含む): 50096640

約数和(自身を除く): 21188901

約数列:

[1, 3, 7, 9, 21, 27, 43, 63, 129, 189, 301, 387, 903, 1161, 2709, 3557, 8127, 10671, 24899, 32013, 74697, 96039, 152951, 224091, 458853, 672273, 1070657, 1376559, 3211971, 4129677, 9635913, 28907739]

約数ペア:

[(1, 28907739), (3, 9635913), (7, 4129677), (9, 3211971), (21, 1376559), (27, 1070657), (43, 672273), (63, 458853), (129, 224091), (189, 152951), (301, 96039), (387, 74697), (903, 32013), (1161, 24899), (2709, 10671), (3557, 8127)]