15540939

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{193}}^1\times {\mathrm{389}}^1$

素因数の和:611

約数の個数: 24

約数和(自身を含む): 23605920

約数和(自身を除く): 8064981

約数列:

[1, 3, 9, 23, 69, 193, 207, 389, 579, 1167, 1737, 3501, 4439, 8947, 13317, 26841, 39951, 75077, 80523, 225231, 675693, 1726771, 5180313, 15540939]

約数ペア:

[(1, 15540939), (3, 5180313), (9, 1726771), (23, 675693), (69, 225231), (193, 80523), (207, 75077), (389, 39951), (579, 26841), (1167, 13317), (1737, 8947), (3501, 4439)]