20991694

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{373}}^1\times {\mathrm{1481}}^1$

素因数の和:1875

約数の個数: 16

約数和(自身を含む): 33256080

約数和(自身を除く): 12264386

約数列:

[1, 2, 19, 38, 373, 746, 1481, 2962, 7087, 14174, 28139, 56278, 552413, 1104826, 10495847, 20991694]

約数ペア:

[(1, 20991694), (2, 10495847), (19, 1104826), (38, 552413), (373, 56278), (746, 28139), (1481, 14174), (2962, 7087)]