20763704

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{3767}}^1$

素因数の和:3839

約数の個数: 32

約数和(自身を含む): 42729120

約数和(自身を除く): 21965416

約数列:

[1, 2, 4, 8, 13, 26, 52, 53, 104, 106, 212, 424, 689, 1378, 2756, 3767, 5512, 7534, 15068, 30136, 48971, 97942, 195884, 199651, 391768, 399302, 798604, 1597208, 2595463, 5190926, 10381852, 20763704]

約数ペア:

[(1, 20763704), (2, 10381852), (4, 5190926), (8, 2595463), (13, 1597208), (26, 798604), (52, 399302), (53, 391768), (104, 199651), (106, 195884), (212, 97942), (424, 48971), (689, 30136), (1378, 15068), (2756, 7534), (3767, 5512)]