20788593

素因数分解:

$3^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{1373}}^1$

素因数の和:1493

約数の個数: 24

約数和(自身を含む): 32580288

約数和(自身を除く): 11791695

約数列:

[1, 3, 7, 21, 49, 103, 147, 309, 721, 1373, 2163, 4119, 5047, 9611, 15141, 28833, 67277, 141419, 201831, 424257, 989933, 2969799, 6929531, 20788593]

約数ペア:

[(1, 20788593), (3, 6929531), (7, 2969799), (21, 989933), (49, 424257), (103, 201831), (147, 141419), (309, 67277), (721, 28833), (1373, 15141), (2163, 9611), (4119, 5047)]