20384924

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{16931}}^1$

素因数の和:16985

約数の個数: 24

約数和(自身を含む): 41720448

約数和(自身を除く): 21335524

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 172, 301, 602, 1204, 16931, 33862, 67724, 118517, 237034, 474068, 728033, 1456066, 2912132, 5096231, 10192462, 20384924]

約数ペア:

[(1, 20384924), (2, 10192462), (4, 5096231), (7, 2912132), (14, 1456066), (28, 728033), (43, 474068), (86, 237034), (172, 118517), (301, 67724), (602, 33862), (1204, 16931)]