21238364

素因数分解:

$2^2\times 7^2\times {\mathrm{108359}}^1$

素因数の和:108377

約数の個数: 18

約数和(自身を含む): 43235640

約数和(自身を除く): 21997276

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 108359, 216718, 433436, 758513, 1517026, 3034052, 5309591, 10619182, 21238364]

約数ペア:

[(1, 21238364), (2, 10619182), (4, 5309591), (7, 3034052), (14, 1517026), (28, 758513), (49, 433436), (98, 216718), (196, 108359)]