19640936

素因数分解:

$2^3\times 7^1\times {\mathrm{350731}}^1$

素因数の和:350744

約数の個数: 16

約数和(自身を含む): 42087840

約数和(自身を除く): 22446904

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 350731, 701462, 1402924, 2455117, 2805848, 4910234, 9820468, 19640936]

約数ペア:

[(1, 19640936), (2, 9820468), (4, 4910234), (7, 2805848), (8, 2455117), (14, 1402924), (28, 701462), (56, 350731)]