2561139

素因数分解:

$3^4\times 7^1\times {\mathrm{4517}}^1$

素因数の和:4536

約数の個数: 20

約数和(自身を含む): 4373424

約数和(自身を除く): 1812285

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 4517, 13551, 31619, 40653, 94857, 121959, 284571, 365877, 853713, 2561139]

約数ペア:

[(1, 2561139), (3, 853713), (7, 365877), (9, 284571), (21, 121959), (27, 94857), (63, 40653), (81, 31619), (189, 13551), (567, 4517)]