21335708

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{2143}}^1$

素因数の和:2297

約数の個数: 24

約数和(自身を含む): 39621120

約数和(自身を除く): 18285412

約数列:

[1, 2, 4, 19, 38, 76, 131, 262, 524, 2143, 2489, 4286, 4978, 8572, 9956, 40717, 81434, 162868, 280733, 561466, 1122932, 5333927, 10667854, 21335708]

約数ペア:

[(1, 21335708), (2, 10667854), (4, 5333927), (19, 1122932), (38, 561466), (76, 280733), (131, 162868), (262, 81434), (524, 40717), (2143, 9956), (2489, 8572), (4286, 4978)]