28663719

素因数分解:

$3^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{3911}}^1$

素因数の和:4270

約数の個数: 16

約数和(自身を含む): 43814400

約数和(自身を除く): 15150681

約数列:

[1, 3, 7, 21, 349, 1047, 2443, 3911, 7329, 11733, 27377, 82131, 1364939, 4094817, 9554573, 28663719]

約数ペア:

[(1, 28663719), (3, 9554573), (7, 4094817), (21, 1364939), (349, 82131), (1047, 27377), (2443, 11733), (3911, 7329)]