20916663

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{5477}}^1$

素因数の和:5566

約数の個数: 16

約数和(自身を含む): 29800320

約数和(自身を除く): 8883657

約数列:

[1, 3, 19, 57, 67, 201, 1273, 3819, 5477, 16431, 104063, 312189, 366959, 1100877, 6972221, 20916663]

約数ペア:

[(1, 20916663), (3, 6972221), (19, 1100877), (57, 366959), (67, 312189), (201, 104063), (1273, 16431), (3819, 5477)]