21175514

素因数分解:

$2^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1\times {\mathrm{1867}}^1$

素因数の和:2029

約数の個数: 16

約数和(自身を含む): 32682528

約数和(自身を除く): 11507014

約数列:

[1, 2, 53, 106, 107, 214, 1867, 3734, 5671, 11342, 98951, 197902, 199769, 399538, 10587757, 21175514]

約数ペア:

[(1, 21175514), (2, 10587757), (53, 399538), (106, 199769), (107, 197902), (214, 98951), (1867, 11342), (3734, 5671)]