21976144

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{12601}}^1$

素因数の和:12718

約数の個数: 20

約数和(自身を含む): 42972820

約数和(自身を除く): 20996676

約数列:

[1, 2, 4, 8, 16, 109, 218, 436, 872, 1744, 12601, 25202, 50404, 100808, 201616, 1373509, 2747018, 5494036, 10988072, 21976144]

約数ペア:

[(1, 21976144), (2, 10988072), (4, 5494036), (8, 2747018), (16, 1373509), (109, 201616), (218, 100808), (436, 50404), (872, 25202), (1744, 12601)]