20981246

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73361}}^1$

素因数の和:73387

約数の個数: 16

約数和(自身を含む): 36974448

約数和(自身を除く): 15993202

約数列:

[1, 2, 11, 13, 22, 26, 143, 286, 73361, 146722, 806971, 953693, 1613942, 1907386, 10490623, 20981246]

約数ペア:

[(1, 20981246), (2, 10490623), (11, 1907386), (13, 1613942), (22, 953693), (26, 806971), (143, 146722), (286, 73361)]