21356733135

素因数分解:

$3^1\times 5^1\times {\mathrm{431}}^1\times {\mathrm{3303439}}^1$

素因数の和:3303878

約数の個数: 16

約数和(自身を含む): 34250065920

約数和(自身を除く): 12893332785

約数列:

[1, 3, 5, 15, 431, 1293, 2155, 6465, 3303439, 9910317, 16517195, 49551585, 1423782209, 4271346627, 7118911045, 21356733135]

約数ペア:

[(1, 21356733135), (3, 7118911045), (5, 4271346627), (15, 1423782209), (431, 49551585), (1293, 16517195), (2155, 9910317), (6465, 3303439)]