21242409

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{9931}}^1$

素因数の和:9988

約数の個数: 16

約数和(自身を含む): 30511104

約数和(自身を除く): 9268695

約数列:

[1, 3, 23, 31, 69, 93, 713, 2139, 9931, 29793, 228413, 307861, 685239, 923583, 7080803, 21242409]

約数ペア:

[(1, 21242409), (3, 7080803), (23, 923583), (31, 685239), (69, 307861), (93, 228413), (713, 29793), (2139, 9931)]