2561721

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{353}}^1$

素因数の和:456

約数の個数: 16

約数和(自身を含む): 3568320

約数和(自身を除く): 1006599

約数列:

[1, 3, 41, 59, 123, 177, 353, 1059, 2419, 7257, 14473, 20827, 43419, 62481, 853907, 2561721]

約数ペア:

[(1, 2561721), (3, 853907), (41, 62481), (59, 43419), (123, 20827), (177, 14473), (353, 7257), (1059, 2419)]