20779538

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{193}}^1$

素因数の和:350

約数の個数: 32

約数和(自身を含む): 34906032

約数和(自身を除く): 14126494

約数列:

[1, 2, 13, 26, 41, 82, 101, 193, 202, 386, 533, 1066, 1313, 2509, 2626, 4141, 5018, 7913, 8282, 15826, 19493, 38986, 53833, 102869, 107666, 205738, 253409, 506818, 799213, 1598426, 10389769, 20779538]

約数ペア:

[(1, 20779538), (2, 10389769), (13, 1598426), (26, 799213), (41, 506818), (82, 253409), (101, 205738), (193, 107666), (202, 102869), (386, 53833), (533, 38986), (1066, 19493), (1313, 15826), (2509, 8282), (2626, 7913), (4141, 5018)]