20771902

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{7699}}^1$

素因数の和:7791

約数の個数: 16

約数和(自身を含む): 33264000

約数和(自身を除く): 12492098

約数列:

[1, 2, 19, 38, 71, 142, 1349, 2698, 7699, 15398, 146281, 292562, 546629, 1093258, 10385951, 20771902]

約数ペア:

[(1, 20771902), (2, 10385951), (19, 1093258), (38, 546629), (71, 292562), (142, 146281), (1349, 15398), (2698, 7699)]