21189483

素因数分解:

$3^2\times 7^1\times {\mathrm{179}}^1\times {\mathrm{1879}}^1$

素因数の和:2071

約数の個数: 24

約数和(自身を含む): 35193600

約数和(自身を除く): 14004117

約数列:

[1, 3, 7, 9, 21, 63, 179, 537, 1253, 1611, 1879, 3759, 5637, 11277, 13153, 16911, 39459, 118377, 336341, 1009023, 2354387, 3027069, 7063161, 21189483]

約数ペア:

[(1, 21189483), (3, 7063161), (7, 3027069), (9, 2354387), (21, 1009023), (63, 336341), (179, 118377), (537, 39459), (1253, 16911), (1611, 13153), (1879, 11277), (3759, 5637)]