21479948

素因数分解:

$2^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{5519}}^1$

素因数の和:5669

約数の個数: 24

約数和(自身を含む): 43276800

約数和(自身を除く): 21796852

約数列:

[1, 2, 4, 7, 14, 28, 139, 278, 556, 973, 1946, 3892, 5519, 11038, 22076, 38633, 77266, 154532, 767141, 1534282, 3068564, 5369987, 10739974, 21479948]

約数ペア:

[(1, 21479948), (2, 10739974), (4, 5369987), (7, 3068564), (14, 1534282), (28, 767141), (139, 154532), (278, 77266), (556, 38633), (973, 22076), (1946, 11038), (3892, 5519)]