20869198

素因数分解:

$2^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{3491}}^1$

素因数の和:3568

約数の個数: 24

約数和(自身を含む): 37022184

約数和(自身を除く): 16152986

約数列:

[1, 2, 7, 14, 49, 61, 98, 122, 427, 854, 2989, 3491, 5978, 6982, 24437, 48874, 171059, 212951, 342118, 425902, 1490657, 2981314, 10434599, 20869198]

約数ペア:

[(1, 20869198), (2, 10434599), (7, 2981314), (14, 1490657), (49, 425902), (61, 342118), (98, 212951), (122, 171059), (427, 48874), (854, 24437), (2989, 6982), (3491, 5978)]