20942852

素因数分解:

$2^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{5381}}^1$

素因数の和:5531

約数の個数: 24

約数和(自身を含む): 42194880

約数和(自身を除く): 21252028

約数列:

[1, 2, 4, 7, 14, 28, 139, 278, 556, 973, 1946, 3892, 5381, 10762, 21524, 37667, 75334, 150668, 747959, 1495918, 2991836, 5235713, 10471426, 20942852]

約数ペア:

[(1, 20942852), (2, 10471426), (4, 5235713), (7, 2991836), (14, 1495918), (28, 747959), (139, 150668), (278, 75334), (556, 37667), (973, 21524), (1946, 10762), (3892, 5381)]