20655795

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{353}}^1$

素因数の和:491

約数の個数: 32

約数和(自身を含む): 34255872

約数和(自身を除く): 13600077

約数列:

[1, 3, 5, 15, 47, 83, 141, 235, 249, 353, 415, 705, 1059, 1245, 1765, 3901, 5295, 11703, 16591, 19505, 29299, 49773, 58515, 82955, 87897, 146495, 248865, 439485, 1377053, 4131159, 6885265, 20655795]

約数ペア:

[(1, 20655795), (3, 6885265), (5, 4131159), (15, 1377053), (47, 439485), (83, 248865), (141, 146495), (235, 87897), (249, 82955), (353, 58515), (415, 49773), (705, 29299), (1059, 19505), (1245, 16591), (1765, 11703), (3901, 5295)]