21043239

素因数分解:

$3^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{12073}}^1$

素因数の和:12166

約数の個数: 16

約数和(自身を含む): 32454912

約数和(自身を除く): 11411673

約数列:

[1, 3, 7, 21, 83, 249, 581, 1743, 12073, 36219, 84511, 253533, 1002059, 3006177, 7014413, 21043239]

約数ペア:

[(1, 21043239), (3, 7014413), (7, 3006177), (21, 1002059), (83, 253533), (249, 84511), (581, 36219), (1743, 12073)]