18885393

素因数分解:

$3^4\times {\mathrm{107}}^1\times {\mathrm{2179}}^1$

素因数の和:2298

約数の個数: 20

約数和(自身を含む): 28488240

約数和(自身を除く): 9602847

約数列:

[1, 3, 9, 27, 81, 107, 321, 963, 2179, 2889, 6537, 8667, 19611, 58833, 176499, 233153, 699459, 2098377, 6295131, 18885393]

約数ペア:

[(1, 18885393), (3, 6295131), (9, 2098377), (27, 699459), (81, 233153), (107, 176499), (321, 58833), (963, 19611), (2179, 8667), (2889, 6537)]