21388572

素因数分解:

$2^2\times 3^2\times {\mathrm{47}}^1\times {\mathrm{12641}}^1$

素因数の和:12698

約数の個数: 36

約数和(自身を含む): 55220256

約数和(自身を除く): 33831684

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 47, 94, 141, 188, 282, 423, 564, 846, 1692, 12641, 25282, 37923, 50564, 75846, 113769, 151692, 227538, 455076, 594127, 1188254, 1782381, 2376508, 3564762, 5347143, 7129524, 10694286, 21388572]

約数ペア:

[(1, 21388572), (2, 10694286), (3, 7129524), (4, 5347143), (6, 3564762), (9, 2376508), (12, 1782381), (18, 1188254), (36, 594127), (47, 455076), (94, 227538), (141, 151692), (188, 113769), (282, 75846), (423, 50564), (564, 37923), (846, 25282), (1692, 12641)]