20940255

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{22159}}^1$

素因数の和:22180

約数の個数: 32

約数和(自身を含む): 42547200

約数和(自身を除く): 21606945

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 22159, 66477, 110795, 155113, 199431, 332385, 465339, 598293, 775565, 997155, 1396017, 2326695, 2991465, 4188051, 6980085, 20940255]

約数ペア:

[(1, 20940255), (3, 6980085), (5, 4188051), (7, 2991465), (9, 2326695), (15, 1396017), (21, 997155), (27, 775565), (35, 598293), (45, 465339), (63, 332385), (105, 199431), (135, 155113), (189, 110795), (315, 66477), (945, 22159)]