18681729

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{2683}}^1$

素因数の和:2908

約数の個数: 16

約数和(自身を含む): 27312384

約数和(自身を除く): 8630655

約数列:

[1, 3, 11, 33, 211, 633, 2321, 2683, 6963, 8049, 29513, 88539, 566113, 1698339, 6227243, 18681729]

約数ペア:

[(1, 18681729), (3, 6227243), (11, 1698339), (33, 566113), (211, 88539), (633, 29513), (2321, 8049), (2683, 6963)]