20783865

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47779}}^1$

素因数の和:47816

約数の個数: 16

約数和(自身を含む): 34401600

約数和(自身を除く): 13617735

約数列:

[1, 3, 5, 15, 29, 87, 145, 435, 47779, 143337, 238895, 716685, 1385591, 4156773, 6927955, 20783865]

約数ペア:

[(1, 20783865), (3, 6927955), (5, 4156773), (15, 1385591), (29, 716685), (87, 238895), (145, 143337), (435, 47779)]