20425769

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{1163}}^1$

素因数の和:1376

約数の個数: 16

約数和(自身を含む): 25291392

約数和(自身を除く): 4865623

約数列:

[1, 7, 13, 91, 193, 1163, 1351, 2509, 8141, 15119, 17563, 105833, 224459, 1571213, 2917967, 20425769]

約数ペア:

[(1, 20425769), (7, 2917967), (13, 1571213), (91, 224459), (193, 105833), (1163, 17563), (1351, 15119), (2509, 8141)]