20801691

素因数分解:

$3^4\times {\mathrm{67}}^1\times {\mathrm{3833}}^1$

素因数の和:3912

約数の個数: 20

約数和(自身を含む): 31546152

約数和(自身を除く): 10744461

約数列:

[1, 3, 9, 27, 67, 81, 201, 603, 1809, 3833, 5427, 11499, 34497, 103491, 256811, 310473, 770433, 2311299, 6933897, 20801691]

約数ペア:

[(1, 20801691), (3, 6933897), (9, 2311299), (27, 770433), (67, 310473), (81, 256811), (201, 103491), (603, 34497), (1809, 11499), (3833, 5427)]