18994430

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{20873}}^1$

素因数の和:20900

約数の個数: 32

約数和(自身を含む): 42081984

約数和(自身を除く): 23087554

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 20873, 41746, 104365, 146111, 208730, 271349, 292222, 542698, 730555, 1356745, 1461110, 1899443, 2713490, 3798886, 9497215, 18994430]

約数ペア:

[(1, 18994430), (2, 9497215), (5, 3798886), (7, 2713490), (10, 1899443), (13, 1461110), (14, 1356745), (26, 730555), (35, 542698), (65, 292222), (70, 271349), (91, 208730), (130, 146111), (182, 104365), (455, 41746), (910, 20873)]