28406539

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{1559}}^1$

素因数の和:1722

約数の個数: 16

約数和(自身を含む): 34444800

約数和(自身を除く): 6038261

約数列:

[1, 7, 19, 133, 137, 959, 1559, 2603, 10913, 18221, 29621, 207347, 213583, 1495081, 4058077, 28406539]

約数ペア:

[(1, 28406539), (7, 4058077), (19, 1495081), (133, 213583), (137, 207347), (959, 29621), (1559, 18221), (2603, 10913)]