20009187

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1321}}^1$

素因数の和:1361

約数の個数: 40

約数和(自身を含む): 34551792

約数和(自身を除く): 14542605

約数列:

[1, 3, 9, 11, 17, 27, 33, 51, 81, 99, 153, 187, 297, 459, 561, 891, 1321, 1377, 1683, 3963, 5049, 11889, 14531, 15147, 22457, 35667, 43593, 67371, 107001, 130779, 202113, 247027, 392337, 606339, 741081, 1177011, 1819017, 2223243, 6669729, 20009187]

約数ペア:

[(1, 20009187), (3, 6669729), (9, 2223243), (11, 1819017), (17, 1177011), (27, 741081), (33, 606339), (51, 392337), (81, 247027), (99, 202113), (153, 130779), (187, 107001), (297, 67371), (459, 43593), (561, 35667), (891, 22457), (1321, 15147), (1377, 14531), (1683, 11889), (3963, 5049)]