21143751

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{347}}^1\times {\mathrm{1069}}^1$

素因数の和:1438

約数の個数: 16

約数和(自身を含む): 29788800

約数和(自身を除く): 8645049

約数列:

[1, 3, 19, 57, 347, 1041, 1069, 3207, 6593, 19779, 20311, 60933, 370943, 1112829, 7047917, 21143751]

約数ペア:

[(1, 21143751), (3, 7047917), (19, 1112829), (57, 370943), (347, 60933), (1041, 20311), (1069, 19779), (3207, 6593)]