21079653

素因数分解:

$3^1\times 7^2\times {\mathrm{193}}^1\times {\mathrm{743}}^1$

素因数の和:953

約数の個数: 24

約数和(自身を含む): 32908608

約数和(自身を除く): 11828955

約数列:

[1, 3, 7, 21, 49, 147, 193, 579, 743, 1351, 2229, 4053, 5201, 9457, 15603, 28371, 36407, 109221, 143399, 430197, 1003793, 3011379, 7026551, 21079653]

約数ペア:

[(1, 21079653), (3, 7026551), (7, 3011379), (21, 1003793), (49, 430197), (147, 143399), (193, 109221), (579, 36407), (743, 28371), (1351, 15603), (2229, 9457), (4053, 5201)]