21802538

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{8081}}^1$

素因数の和:8173

約数の個数: 16

約数和(自身を含む): 34914240

約数和(自身を除く): 13111702

約数列:

[1, 2, 19, 38, 71, 142, 1349, 2698, 8081, 16162, 153539, 307078, 573751, 1147502, 10901269, 21802538]

約数ペア:

[(1, 21802538), (2, 10901269), (19, 1147502), (38, 573751), (71, 307078), (142, 153539), (1349, 16162), (2698, 8081)]