21308822

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{1951}}^1$

素因数の和:2123

約数の個数: 16

約数和(自身を含む): 32980992

約数和(自身を除く): 11672170

約数列:

[1, 2, 43, 86, 127, 254, 1951, 3902, 5461, 10922, 83893, 167786, 247777, 495554, 10654411, 21308822]

約数ペア:

[(1, 21308822), (2, 10654411), (43, 495554), (86, 247777), (127, 167786), (254, 83893), (1951, 10922), (3902, 5461)]