20859962

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{2143}}^1$

素因数の和:2333

約数の個数: 16

約数和(自身を含む): 32520192

約数和(自身を除く): 11660230

約数列:

[1, 2, 31, 62, 157, 314, 2143, 4286, 4867, 9734, 66433, 132866, 336451, 672902, 10429981, 20859962]

約数ペア:

[(1, 20859962), (2, 10429981), (31, 672902), (62, 336451), (157, 132866), (314, 66433), (2143, 9734), (4286, 4867)]