21392776

素因数分解:

$2^3\times {\mathrm{109}}^1\times {\mathrm{24533}}^1$

素因数の和:24648

約数の個数: 16

約数和(自身を含む): 40481100

約数和(自身を除く): 19088324

約数列:

[1, 2, 4, 8, 109, 218, 436, 872, 24533, 49066, 98132, 196264, 2674097, 5348194, 10696388, 21392776]

約数ペア:

[(1, 21392776), (2, 10696388), (4, 5348194), (8, 2674097), (109, 196264), (218, 98132), (436, 49066), (872, 24533)]