21385744

素因数分解:

$2^4\times {\mathrm{283}}^1\times {\mathrm{4723}}^1$

素因数の和:5014

約数の個数: 20

約数和(自身を含む): 41590096

約数和(自身を除く): 20204352

約数列:

[1, 2, 4, 8, 16, 283, 566, 1132, 2264, 4528, 4723, 9446, 18892, 37784, 75568, 1336609, 2673218, 5346436, 10692872, 21385744]

約数ペア:

[(1, 21385744), (2, 10692872), (4, 5346436), (8, 2673218), (16, 1336609), (283, 75568), (566, 37784), (1132, 18892), (2264, 9446), (4528, 4723)]