21309952

素因数分解:

$2^9\times {\mathrm{41621}}^1$

素因数の和:41639

約数の個数: 20

約数和(自身を含む): 42579306

約数和(自身を除く): 21269354

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 41621, 83242, 166484, 332968, 665936, 1331872, 2663744, 5327488, 10654976, 21309952]

約数ペア:

[(1, 21309952), (2, 10654976), (4, 5327488), (8, 2663744), (16, 1331872), (32, 665936), (64, 332968), (128, 166484), (256, 83242), (512, 41621)]