21337418

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{487}}^1\times {\mathrm{1153}}^1$

素因数の和:1661

約数の個数: 16

約数和(自身を含む): 33789120

約数和(自身を除く): 12451702

約数列:

[1, 2, 19, 38, 487, 974, 1153, 2306, 9253, 18506, 21907, 43814, 561511, 1123022, 10668709, 21337418]

約数ペア:

[(1, 21337418), (2, 10668709), (19, 1123022), (38, 561511), (487, 43814), (974, 21907), (1153, 18506), (2306, 9253)]