21871568

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{47137}}^1$

素因数の和:47174

約数の個数: 20

約数和(自身を含む): 43838340

約数和(自身を除く): 21966772

約数列:

[1, 2, 4, 8, 16, 29, 58, 116, 232, 464, 47137, 94274, 188548, 377096, 754192, 1366973, 2733946, 5467892, 10935784, 21871568]

約数ペア:

[(1, 21871568), (2, 10935784), (4, 5467892), (8, 2733946), (16, 1366973), (29, 754192), (58, 377096), (116, 188548), (232, 94274), (464, 47137)]