21555712

素因数分解:

$2^9\times {\mathrm{42101}}^1$

素因数の和:42119

約数の個数: 20

約数和(自身を含む): 43070346

約数和(自身を除く): 21514634

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 42101, 84202, 168404, 336808, 673616, 1347232, 2694464, 5388928, 10777856, 21555712]

約数ペア:

[(1, 21555712), (2, 10777856), (4, 5388928), (8, 2694464), (16, 1347232), (32, 673616), (64, 336808), (128, 168404), (256, 84202), (512, 42101)]