19899564

素因数分解:

$2^2\times 3^1\times {\mathrm{643}}^1\times {\mathrm{2579}}^1$

素因数の和:3229

約数の個数: 24

約数和(自身を含む): 46522560

約数和(自身を除く): 26622996

約数列:

[1, 2, 3, 4, 6, 12, 643, 1286, 1929, 2572, 2579, 3858, 5158, 7716, 7737, 10316, 15474, 30948, 1658297, 3316594, 4974891, 6633188, 9949782, 19899564]

約数ペア:

[(1, 19899564), (2, 9949782), (3, 6633188), (4, 4974891), (6, 3316594), (12, 1658297), (643, 30948), (1286, 15474), (1929, 10316), (2572, 7737), (2579, 7716), (3858, 5158)]