20940285

素因数分解:

$3^1\times 5^1\times {\mathrm{191}}^1\times {\mathrm{7309}}^1$

素因数の和:7508

約数の個数: 16

約数和(自身を含む): 33684480

約数和(自身を除く): 12744195

約数列:

[1, 3, 5, 15, 191, 573, 955, 2865, 7309, 21927, 36545, 109635, 1396019, 4188057, 6980095, 20940285]

約数ペア:

[(1, 20940285), (3, 6980095), (5, 4188057), (15, 1396019), (191, 109635), (573, 36545), (955, 21927), (2865, 7309)]