20349021

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{643}}^1$

素因数の和:801

約数の個数: 32

約数和(自身を含む): 34126848

約数和(自身を除く): 13777827

約数列:

[1, 3, 7, 11, 21, 33, 77, 137, 231, 411, 643, 959, 1507, 1929, 2877, 4501, 4521, 7073, 10549, 13503, 21219, 31647, 49511, 88091, 148533, 264273, 616637, 969001, 1849911, 2907003, 6783007, 20349021]

約数ペア:

[(1, 20349021), (3, 6783007), (7, 2907003), (11, 1849911), (21, 969001), (33, 616637), (77, 264273), (137, 148533), (231, 88091), (411, 49511), (643, 31647), (959, 21219), (1507, 13503), (1929, 10549), (2877, 7073), (4501, 4521)]