20307988

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{3109}}^1$

素因数の和:3207

約数の個数: 24

約数和(自身を含む): 37618560

約数和(自身を除く): 17310572

約数列:

[1, 2, 4, 23, 46, 71, 92, 142, 284, 1633, 3109, 3266, 6218, 6532, 12436, 71507, 143014, 220739, 286028, 441478, 882956, 5076997, 10153994, 20307988]

約数ペア:

[(1, 20307988), (2, 10153994), (4, 5076997), (23, 882956), (46, 441478), (71, 286028), (92, 220739), (142, 143014), (284, 71507), (1633, 12436), (3109, 6532), (3266, 6218)]