28705061

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{21929}}^1$

素因数の和:21964

約数の個数: 16

約数和(自身を含む): 37895040

約数和(自身を除く): 9189979

約数列:

[1, 7, 11, 17, 77, 119, 187, 1309, 21929, 153503, 241219, 372793, 1688533, 2609551, 4100723, 28705061]

約数ペア:

[(1, 28705061), (7, 4100723), (11, 2609551), (17, 1688533), (77, 372793), (119, 241219), (187, 153503), (1309, 21929)]