21923139

素因数分解:

$3^1\times 7^2\times {\mathrm{293}}^1\times {\mathrm{509}}^1$

素因数の和:819

約数の個数: 24

約数和(自身を含む): 34186320

約数和(自身を除く): 12263181

約数列:

[1, 3, 7, 21, 49, 147, 293, 509, 879, 1527, 2051, 3563, 6153, 10689, 14357, 24941, 43071, 74823, 149137, 447411, 1043959, 3131877, 7307713, 21923139]

約数ペア:

[(1, 21923139), (3, 7307713), (7, 3131877), (21, 1043959), (49, 447411), (147, 149137), (293, 74823), (509, 43071), (879, 24941), (1527, 14357), (2051, 10689), (3563, 6153)]