27681993

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{17987}}^1$

素因数の和:18018

約数の個数: 20

約数和(自身を含む): 43530960

約数和(自身を除く): 15848967

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 17987, 53961, 161883, 341753, 485649, 1025259, 1456947, 3075777, 9227331, 27681993]

約数ペア:

[(1, 27681993), (3, 9227331), (9, 3075777), (19, 1456947), (27, 1025259), (57, 485649), (81, 341753), (171, 161883), (513, 53961), (1539, 17987)]