18992018

素因数分解:

$2^1\times {\mathrm{97}}^1\times {\mathrm{223}}^1\times {\mathrm{439}}^1$

素因数の和:761

約数の個数: 16

約数和(自身を含む): 28976640

約数和(自身を除く): 9984622

約数列:

[1, 2, 97, 194, 223, 439, 446, 878, 21631, 42583, 43262, 85166, 97897, 195794, 9496009, 18992018]

約数ペア:

[(1, 18992018), (2, 9496009), (97, 195794), (194, 97897), (223, 85166), (439, 43262), (446, 42583), (878, 21631)]