18957861

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{54011}}^1$

素因数の和:54033

約数の個数: 16

約数和(自身を含む): 30246720

約数和(自身を除く): 11288859

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 54011, 162033, 486099, 702143, 1458297, 2106429, 6319287, 18957861]

約数ペア:

[(1, 18957861), (3, 6319287), (9, 2106429), (13, 1458297), (27, 702143), (39, 486099), (117, 162033), (351, 54011)]