20691704

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{3221}}^1$

素因数の和:3311

約数の個数: 32

約数和(自身を含む): 42917040

約数和(自身を除く): 22225336

約数列:

[1, 2, 4, 8, 11, 22, 44, 73, 88, 146, 292, 584, 803, 1606, 3212, 3221, 6424, 6442, 12884, 25768, 35431, 70862, 141724, 235133, 283448, 470266, 940532, 1881064, 2586463, 5172926, 10345852, 20691704]

約数ペア:

[(1, 20691704), (2, 10345852), (4, 5172926), (8, 2586463), (11, 1881064), (22, 940532), (44, 470266), (73, 283448), (88, 235133), (146, 141724), (292, 70862), (584, 35431), (803, 25768), (1606, 12884), (3212, 6442), (3221, 6424)]