20777978

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{1621}}^1$

素因数の和:1682

約数の個数: 32

約数和(自身を含む): 36786960

約数和(自身を除く): 16008982

約数列:

[1, 2, 13, 17, 26, 29, 34, 58, 221, 377, 442, 493, 754, 986, 1621, 3242, 6409, 12818, 21073, 27557, 42146, 47009, 55114, 94018, 358241, 611117, 716482, 799153, 1222234, 1598306, 10388989, 20777978]

約数ペア:

[(1, 20777978), (2, 10388989), (13, 1598306), (17, 1222234), (26, 799153), (29, 716482), (34, 611117), (58, 358241), (221, 94018), (377, 55114), (442, 47009), (493, 42146), (754, 27557), (986, 21073), (1621, 12818), (3242, 6409)]