21357806

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{397}}^1\times {\mathrm{727}}^1$

素因数の和:1163

約数の個数: 16

約数和(自身を含む): 33030816

約数和(自身を除く): 11673010

約数列:

[1, 2, 37, 74, 397, 727, 794, 1454, 14689, 26899, 29378, 53798, 288619, 577238, 10678903, 21357806]

約数ペア:

[(1, 21357806), (2, 10678903), (37, 577238), (74, 288619), (397, 53798), (727, 29378), (794, 26899), (1454, 14689)]