20385645

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{194149}}^1$

素因数の和:194164

約数の個数: 16

約数和(自身を含む): 37276800

約数和(自身を除く): 16891155

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 194149, 582447, 970745, 1359043, 2912235, 4077129, 6795215, 20385645]

約数ペア:

[(1, 20385645), (3, 6795215), (5, 4077129), (7, 2912235), (15, 1359043), (21, 970745), (35, 582447), (105, 194149)]