21917051

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{997}}^1$

素因数の和:1118

約数の個数: 16

約数和(自身を含む): 25149600

約数和(自身を除く): 3232549

約数列:

[1, 13, 19, 89, 247, 997, 1157, 1691, 12961, 18943, 21983, 88733, 246259, 1153529, 1685927, 21917051]

約数ペア:

[(1, 21917051), (13, 1685927), (19, 1153529), (89, 246259), (247, 88733), (997, 21983), (1157, 18943), (1691, 12961)]