20468428

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{149}}^1\times {\mathrm{563}}^1$

素因数の和:777

約数の個数: 24

約数和(自身を含む): 36716400

約数和(自身を除く): 16247972

約数列:

[1, 2, 4, 61, 122, 149, 244, 298, 563, 596, 1126, 2252, 9089, 18178, 34343, 36356, 68686, 83887, 137372, 167774, 335548, 5117107, 10234214, 20468428]

約数ペア:

[(1, 20468428), (2, 10234214), (4, 5117107), (61, 335548), (122, 167774), (149, 137372), (244, 83887), (298, 68686), (563, 36356), (596, 34343), (1126, 18178), (2252, 9089)]