20824336

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1889}}^1$

素因数の和:1963

約数の個数: 40

約数和(自身を含む): 44294040

約数和(自身を除く): 23469704

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 53, 104, 106, 208, 212, 424, 689, 848, 1378, 1889, 2756, 3778, 5512, 7556, 11024, 15112, 24557, 30224, 49114, 98228, 100117, 196456, 200234, 392912, 400468, 800936, 1301521, 1601872, 2603042, 5206084, 10412168, 20824336]

約数ペア:

[(1, 20824336), (2, 10412168), (4, 5206084), (8, 2603042), (13, 1601872), (16, 1301521), (26, 800936), (52, 400468), (53, 392912), (104, 200234), (106, 196456), (208, 100117), (212, 98228), (424, 49114), (689, 30224), (848, 24557), (1378, 15112), (1889, 11024), (2756, 7556), (3778, 5512)]