21615612

素因数分解:

$2^2\times 3^1\times {\mathrm{139}}^1\times {\mathrm{12959}}^1$

素因数の和:13105

約数の個数: 24

約数和(自身を含む): 50803200

約数和(自身を除く): 29187588

約数列:

[1, 2, 3, 4, 6, 12, 139, 278, 417, 556, 834, 1668, 12959, 25918, 38877, 51836, 77754, 155508, 1801301, 3602602, 5403903, 7205204, 10807806, 21615612]

約数ペア:

[(1, 21615612), (2, 10807806), (3, 7205204), (4, 5403903), (6, 3602602), (12, 1801301), (139, 155508), (278, 77754), (417, 51836), (556, 38877), (834, 25918), (1668, 12959)]