21435854

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{20731}}^1$

素因数の和:20791

約数の個数: 16

約数和(自身を含む): 35824896

約数和(自身を除く): 14389042

約数列:

[1, 2, 11, 22, 47, 94, 517, 1034, 20731, 41462, 228041, 456082, 974357, 1948714, 10717927, 21435854]

約数ペア:

[(1, 21435854), (2, 10717927), (11, 1948714), (22, 974357), (47, 456082), (94, 228041), (517, 41462), (1034, 20731)]