20976285

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{6691}}^1$

素因数の和:6729

約数の個数: 32

約数和(自身を含む): 38545920

約数和(自身を除く): 17569635

約数列:

[1, 3, 5, 11, 15, 19, 33, 55, 57, 95, 165, 209, 285, 627, 1045, 3135, 6691, 20073, 33455, 73601, 100365, 127129, 220803, 368005, 381387, 635645, 1104015, 1398419, 1906935, 4195257, 6992095, 20976285]

約数ペア:

[(1, 20976285), (3, 6992095), (5, 4195257), (11, 1906935), (15, 1398419), (19, 1104015), (33, 635645), (55, 381387), (57, 368005), (95, 220803), (165, 127129), (209, 100365), (285, 73601), (627, 33455), (1045, 20073), (3135, 6691)]