21954568

素因数分解:

$2^3\times {\mathrm{331}}^1\times {\mathrm{8291}}^1$

素因数の和:8628

約数の個数: 16

約数和(自身を含む): 41294160

約数和(自身を除く): 19339592

約数列:

[1, 2, 4, 8, 331, 662, 1324, 2648, 8291, 16582, 33164, 66328, 2744321, 5488642, 10977284, 21954568]

約数ペア:

[(1, 21954568), (2, 10977284), (4, 5488642), (8, 2744321), (331, 66328), (662, 33164), (1324, 16582), (2648, 8291)]