28685769

素因数分解:

$3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{17291}}^1$

素因数の和:17380

約数の個数: 16

約数和(自身を含む): 44267520

約数和(自身を除く): 15581751

約数列:

[1, 3, 7, 21, 79, 237, 553, 1659, 17291, 51873, 121037, 363111, 1365989, 4097967, 9561923, 28685769]

約数ペア:

[(1, 28685769), (3, 9561923), (7, 4097967), (21, 1365989), (79, 363111), (237, 121037), (553, 51873), (1659, 17291)]