20899604

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{1489}}^1$

素因数の和:1544

約数の個数: 36

約数和(自身を含む): 41615700

約数和(自身を除く): 20716096

約数列:

[1, 2, 4, 11, 22, 29, 44, 58, 116, 121, 242, 319, 484, 638, 1276, 1489, 2978, 3509, 5956, 7018, 14036, 16379, 32758, 43181, 65516, 86362, 172724, 180169, 360338, 474991, 720676, 949982, 1899964, 5224901, 10449802, 20899604]

約数ペア:

[(1, 20899604), (2, 10449802), (4, 5224901), (11, 1899964), (22, 949982), (29, 720676), (44, 474991), (58, 360338), (116, 180169), (121, 172724), (242, 86362), (319, 65516), (484, 43181), (638, 32758), (1276, 16379), (1489, 14036), (2978, 7018), (3509, 5956)]