20349903

素因数分解:

$3^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{4919}}^1$

素因数の和:5126

約数の個数: 16

約数和(自身を含む): 31173120

約数和(自身を除く): 10823217

約数列:

[1, 3, 7, 21, 197, 591, 1379, 4137, 4919, 14757, 34433, 103299, 969043, 2907129, 6783301, 20349903]

約数ペア:

[(1, 20349903), (3, 6783301), (7, 2907129), (21, 969043), (197, 103299), (591, 34433), (1379, 14757), (4137, 4919)]