20491229

素因数分解:

${\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{199}}^1$

素因数の和:281

約数の個数: 24

約数和(自身を含む): 24259200

約数和(自身を除く): 3767971

約数列:

[1, 11, 23, 37, 121, 199, 253, 407, 851, 2189, 2783, 4477, 4577, 7363, 9361, 24079, 50347, 80993, 102971, 169349, 553817, 890923, 1862839, 20491229]

約数ペア:

[(1, 20491229), (11, 1862839), (23, 890923), (37, 553817), (121, 169349), (199, 102971), (253, 80993), (407, 50347), (851, 24079), (2189, 9361), (2783, 7363), (4477, 4577)]