20375217

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{257}}^1\times {\mathrm{383}}^1$

素因数の和:669

約数の個数: 24

約数和(自身を含む): 30910464

約数和(自身を除く): 10535247

約数列:

[1, 3, 9, 23, 69, 207, 257, 383, 771, 1149, 2313, 3447, 5911, 8809, 17733, 26427, 53199, 79281, 98431, 295293, 885879, 2263913, 6791739, 20375217]

約数ペア:

[(1, 20375217), (3, 6791739), (9, 2263913), (23, 885879), (69, 295293), (207, 98431), (257, 79281), (383, 53199), (771, 26427), (1149, 17733), (2313, 8809), (3447, 5911)]