20254221

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{331}}^1\times {\mathrm{523}}^1$

素因数の和:873

約数の個数: 24

約数和(自身を含む): 31662176

約数和(自身を除く): 11407955

約数列:

[1, 3, 9, 13, 39, 117, 331, 523, 993, 1569, 2979, 4303, 4707, 6799, 12909, 20397, 38727, 61191, 173113, 519339, 1558017, 2250469, 6751407, 20254221]

約数ペア:

[(1, 20254221), (3, 6751407), (9, 2250469), (13, 1558017), (39, 519339), (117, 173113), (331, 61191), (523, 38727), (993, 20397), (1569, 12909), (2979, 6799), (4303, 4707)]