28019979

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{79829}}^1$

素因数の和:79851

約数の個数: 16

約数和(自身を含む): 44704800

約数和(自身を除く): 16684821

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 79829, 239487, 718461, 1037777, 2155383, 3113331, 9339993, 28019979]

約数ペア:

[(1, 28019979), (3, 9339993), (9, 3113331), (13, 2155383), (27, 1037777), (39, 718461), (117, 239487), (351, 79829)]