21237412

素因数分解:

$2^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{9601}}^1$

素因数の和:9691

約数の個数: 24

約数和(自身を含む): 43016960

約数和(自身を除く): 21779548

約数列:

[1, 2, 4, 7, 14, 28, 79, 158, 316, 553, 1106, 2212, 9601, 19202, 38404, 67207, 134414, 268828, 758479, 1516958, 3033916, 5309353, 10618706, 21237412]

約数ペア:

[(1, 21237412), (2, 10618706), (4, 5309353), (7, 3033916), (14, 1516958), (28, 758479), (79, 268828), (158, 134414), (316, 67207), (553, 38404), (1106, 19202), (2212, 9601)]