21511049

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{19087}}^1$

素因数の和:19124

約数の個数: 12

約数和(自身を含む): 26112384

約数和(自身を除く): 4601335

約数列:

[1, 7, 23, 49, 161, 1127, 19087, 133609, 439001, 935263, 3073007, 21511049]

約数ペア:

[(1, 21511049), (7, 3073007), (23, 935263), (49, 439001), (161, 133609), (1127, 19087)]