21139167

素因数分解:

$3^1\times 7^1\times {\mathrm{439}}^1\times {\mathrm{2293}}^1$

素因数の和:2742

約数の個数: 16

約数和(自身を含む): 32299520

約数和(自身を除く): 11160353

約数列:

[1, 3, 7, 21, 439, 1317, 2293, 3073, 6879, 9219, 16051, 48153, 1006627, 3019881, 7046389, 21139167]

約数ペア:

[(1, 21139167), (3, 7046389), (7, 3019881), (21, 1006627), (439, 48153), (1317, 16051), (2293, 9219), (3073, 6879)]