20308869

素因数分解:

$3^2\times 7^1\times {\mathrm{347}}^1\times {\mathrm{929}}^1$

素因数の和:1289

約数の個数: 24

約数和(自身を含む): 33658560

約数和(自身を除く): 13349691

約数列:

[1, 3, 7, 9, 21, 63, 347, 929, 1041, 2429, 2787, 3123, 6503, 7287, 8361, 19509, 21861, 58527, 322363, 967089, 2256541, 2901267, 6769623, 20308869]

約数ペア:

[(1, 20308869), (3, 6769623), (7, 2901267), (9, 2256541), (21, 967089), (63, 322363), (347, 58527), (929, 21861), (1041, 19509), (2429, 8361), (2787, 7287), (3123, 6503)]