1278213

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{353}}^1$

素因数の和:444

約数の個数: 16

約数和(自身を含む): 1835136

約数和(自身を除く): 556923

約数列:

[1, 3, 17, 51, 71, 213, 353, 1059, 1207, 3621, 6001, 18003, 25063, 75189, 426071, 1278213]

約数ペア:

[(1, 1278213), (3, 426071), (17, 75189), (51, 25063), (71, 18003), (213, 6001), (353, 3621), (1059, 1207)]