28588749

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{523}}^1$

素因数の和:689

約数の個数: 32

約数和(自身を含む): 46279680

約数和(自身を除く): 17690931

約数列:

[1, 3, 7, 19, 21, 57, 133, 137, 399, 411, 523, 959, 1569, 2603, 2877, 3661, 7809, 9937, 10983, 18221, 29811, 54663, 69559, 71651, 208677, 214953, 501557, 1361369, 1504671, 4084107, 9529583, 28588749]

約数ペア:

[(1, 28588749), (3, 9529583), (7, 4084107), (19, 1504671), (21, 1361369), (57, 501557), (133, 214953), (137, 208677), (399, 71651), (411, 69559), (523, 54663), (959, 29811), (1569, 18221), (2603, 10983), (2877, 9937), (3661, 7809)]