18664263

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{7433}}^1$

素因数の和:7476

約数の個数: 20

約数和(自身を含む): 28784448

約数和(自身を除く): 10120185

約数列:

[1, 3, 9, 27, 31, 81, 93, 279, 837, 2511, 7433, 22299, 66897, 200691, 230423, 602073, 691269, 2073807, 6221421, 18664263]

約数ペア:

[(1, 18664263), (3, 6221421), (9, 2073807), (27, 691269), (31, 602073), (81, 230423), (93, 200691), (279, 66897), (837, 22299), (2511, 7433)]