19962988

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{2237}}^1$

素因数の和:2361

約数の個数: 24

約数和(自身を含む): 36846432

約数和(自身を除く): 16883444

約数列:

[1, 2, 4, 23, 46, 92, 97, 194, 388, 2231, 2237, 4462, 4474, 8924, 8948, 51451, 102902, 205804, 216989, 433978, 867956, 4990747, 9981494, 19962988]

約数ペア:

[(1, 19962988), (2, 9981494), (4, 4990747), (23, 867956), (46, 433978), (92, 216989), (97, 205804), (194, 102902), (388, 51451), (2231, 8948), (2237, 8924), (4462, 4474)]