81136972

素因数分解:

$2^2\times 7^1\times {\mathrm{157}}^1\times {\mathrm{18457}}^1$

素因数の和:18625

約数の個数: 24

約数和(自身を含む): 163316384

約数和(自身を除く): 82179412

約数列:

[1, 2, 4, 7, 14, 28, 157, 314, 628, 1099, 2198, 4396, 18457, 36914, 73828, 129199, 258398, 516796, 2897749, 5795498, 11590996, 20284243, 40568486, 81136972]

約数ペア:

[(1, 81136972), (2, 40568486), (4, 20284243), (7, 11590996), (14, 5795498), (28, 2897749), (157, 516796), (314, 258398), (628, 129199), (1099, 73828), (2198, 36914), (4396, 18457)]