20881408

素因数分解:

$2^{13}\times {\mathrm{2549}}^1$

素因数の和:2575

約数の個数: 28

約数和(自身を含む): 41776650

約数和(自身を除く): 20895242

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 2549, 4096, 5098, 8192, 10196, 20392, 40784, 81568, 163136, 326272, 652544, 1305088, 2610176, 5220352, 10440704, 20881408]

約数ペア:

[(1, 20881408), (2, 10440704), (4, 5220352), (8, 2610176), (16, 1305088), (32, 652544), (64, 326272), (128, 163136), (256, 81568), (512, 40784), (1024, 20392), (2048, 10196), (2549, 8192), (4096, 5098)]