20343561

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{15881}}^1$

素因数の和:15952

約数の個数: 16

約数和(自身を含む): 31509888

約数和(自身を除く): 11166327

約数列:

[1, 3, 7, 21, 61, 183, 427, 1281, 15881, 47643, 111167, 333501, 968741, 2906223, 6781187, 20343561]

約数ペア:

[(1, 20343561), (3, 6781187), (7, 2906223), (21, 968741), (61, 333501), (183, 111167), (427, 47643), (1281, 15881)]