21569127

素因数分解:

$3^1\times {\mathrm{29}}^2\times {\mathrm{83}}^1\times {\mathrm{103}}^1$

素因数の和:247

約数の個数: 24

約数和(自身を含む): 30436224

約数和(自身を除く): 8867097

約数列:

[1, 3, 29, 83, 87, 103, 249, 309, 841, 2407, 2523, 2987, 7221, 8549, 8961, 25647, 69803, 86623, 209409, 247921, 259869, 743763, 7189709, 21569127]

約数ペア:

[(1, 21569127), (3, 7189709), (29, 743763), (83, 259869), (87, 247921), (103, 209409), (249, 86623), (309, 69803), (841, 25647), (2407, 8961), (2523, 8549), (2987, 7221)]