20605305

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{311}}^1\times {\mathrm{631}}^1$

素因数の和:957

約数の個数: 32

約数和(自身を含む): 37859328

約数和(自身を除く): 17254023

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 311, 631, 933, 1555, 1893, 2177, 3155, 4417, 4665, 6531, 9465, 10885, 13251, 22085, 32655, 66255, 196241, 588723, 981205, 1373687, 2943615, 4121061, 6868435, 20605305]

約数ペア:

[(1, 20605305), (3, 6868435), (5, 4121061), (7, 2943615), (15, 1373687), (21, 981205), (35, 588723), (105, 196241), (311, 66255), (631, 32655), (933, 22085), (1555, 13251), (1893, 10885), (2177, 9465), (3155, 6531), (4417, 4665)]