21647488

素因数分解:

$2^7\times {\mathrm{131}}^1\times {\mathrm{1291}}^1$

素因数の和:1436

約数の個数: 32

約数和(自身を含む): 43488720

約数和(自身を除く): 21841232

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 131, 262, 524, 1048, 1291, 2096, 2582, 4192, 5164, 8384, 10328, 16768, 20656, 41312, 82624, 165248, 169121, 338242, 676484, 1352968, 2705936, 5411872, 10823744, 21647488]

約数ペア:

[(1, 21647488), (2, 10823744), (4, 5411872), (8, 2705936), (16, 1352968), (32, 676484), (64, 338242), (128, 169121), (131, 165248), (262, 82624), (524, 41312), (1048, 20656), (1291, 16768), (2096, 10328), (2582, 8384), (4192, 5164)]