21998746

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{20407}}^1$

素因数の和:20434

約数の個数: 24

約数和(自身を含む): 41877216

約数和(自身を除く): 19878470

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 154, 539, 1078, 20407, 40814, 142849, 224477, 285698, 448954, 999943, 1571339, 1999886, 3142678, 10999373, 21998746]

約数ペア:

[(1, 21998746), (2, 10999373), (7, 3142678), (11, 1999886), (14, 1571339), (22, 999943), (49, 448954), (77, 285698), (98, 224477), (154, 142849), (539, 40814), (1078, 20407)]