20440269

素因数分解:

$3^4\times {\mathrm{127}}^1\times {\mathrm{1987}}^1$

素因数の和:2126

約数の個数: 20

約数和(自身を含む): 30790144

約数和(自身を除く): 10349875

約数列:

[1, 3, 9, 27, 81, 127, 381, 1143, 1987, 3429, 5961, 10287, 17883, 53649, 160947, 252349, 757047, 2271141, 6813423, 20440269]

約数ペア:

[(1, 20440269), (3, 6813423), (9, 2271141), (27, 757047), (81, 252349), (127, 160947), (381, 53649), (1143, 17883), (1987, 10287), (3429, 5961)]