20397399

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{353}}^1$

素因数の和:487

約数の個数: 32

約数和(自身を含む): 31809024

約数和(自身を除く): 11411625

約数列:

[1, 3, 11, 17, 33, 51, 103, 187, 309, 353, 561, 1059, 1133, 1751, 3399, 3883, 5253, 6001, 11649, 18003, 19261, 36359, 57783, 66011, 109077, 198033, 399949, 618103, 1199847, 1854309, 6799133, 20397399]

約数ペア:

[(1, 20397399), (3, 6799133), (11, 1854309), (17, 1199847), (33, 618103), (51, 399949), (103, 198033), (187, 109077), (309, 66011), (353, 57783), (561, 36359), (1059, 19261), (1133, 18003), (1751, 11649), (3399, 6001), (3883, 5253)]