21203968

素因数分解:

$2^{10}\times {\mathrm{20707}}^1$

素因数の和:20727

約数の個数: 22

約数和(自身を含む): 42389276

約数和(自身を除く): 21185308

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 20707, 41414, 82828, 165656, 331312, 662624, 1325248, 2650496, 5300992, 10601984, 21203968]

約数ペア:

[(1, 21203968), (2, 10601984), (4, 5300992), (8, 2650496), (16, 1325248), (32, 662624), (64, 331312), (128, 165656), (256, 82828), (512, 41414), (1024, 20707)]