21066784

素因数分解:

$2^5\times {\mathrm{41}}^1\times {\mathrm{16057}}^1$

素因数の和:16108

約数の個数: 24

約数和(自身を含む): 42489468

約数和(自身を除く): 21422684

約数列:

[1, 2, 4, 8, 16, 32, 41, 82, 164, 328, 656, 1312, 16057, 32114, 64228, 128456, 256912, 513824, 658337, 1316674, 2633348, 5266696, 10533392, 21066784]

約数ペア:

[(1, 21066784), (2, 10533392), (4, 5266696), (8, 2633348), (16, 1316674), (32, 658337), (41, 513824), (82, 256912), (164, 128456), (328, 64228), (656, 32114), (1312, 16057)]