21434511

素因数分解:

$3^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{3391}}^1$

素因数の和:3451

約数の個数: 24

約数和(自身を含む): 34028544

約数和(自身を除く): 12594033

約数列:

[1, 3, 7, 21, 43, 49, 129, 147, 301, 903, 2107, 3391, 6321, 10173, 23737, 71211, 145813, 166159, 437439, 498477, 1020691, 3062073, 7144837, 21434511]

約数ペア:

[(1, 21434511), (3, 7144837), (7, 3062073), (21, 1020691), (43, 498477), (49, 437439), (129, 166159), (147, 145813), (301, 71211), (903, 23737), (2107, 10173), (3391, 6321)]