18447993

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{11987}}^1$

素因数の和:12018

約数の個数: 20

約数和(自身を含む): 29010960

約数和(自身を除く): 10562967

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 11987, 35961, 107883, 227753, 323649, 683259, 970947, 2049777, 6149331, 18447993]

約数ペア:

[(1, 18447993), (3, 6149331), (9, 2049777), (19, 970947), (27, 683259), (57, 323649), (81, 227753), (171, 107883), (513, 35961), (1539, 11987)]