21130782

素因数分解:

$2^1\times 3^1\times {\mathrm{53}}^1\times {\mathrm{66449}}^1$

素因数の和:66507

約数の個数: 16

約数和(自身を含む): 43059600

約数和(自身を除く): 21928818

約数列:

[1, 2, 3, 6, 53, 106, 159, 318, 66449, 132898, 199347, 398694, 3521797, 7043594, 10565391, 21130782]

約数ペア:

[(1, 21130782), (2, 10565391), (3, 7043594), (6, 3521797), (53, 398694), (106, 199347), (159, 132898), (318, 66449)]