20628993

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{89303}}^1$

素因数の和:89324

約数の個数: 16

約数和(自身を含む): 34292736

約数和(自身を除く): 13663743

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 89303, 267909, 625121, 982333, 1875363, 2946999, 6876331, 20628993]

約数ペア:

[(1, 20628993), (3, 6876331), (7, 2946999), (11, 1875363), (21, 982333), (33, 625121), (77, 267909), (231, 89303)]