19707788

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{257}}^1\times {\mathrm{1009}}^1$

素因数の和:1289

約数の個数: 24

約数和(自身を含む): 36481200

約数和(自身を除く): 16773412

約数列:

[1, 2, 4, 19, 38, 76, 257, 514, 1009, 1028, 2018, 4036, 4883, 9766, 19171, 19532, 38342, 76684, 259313, 518626, 1037252, 4926947, 9853894, 19707788]

約数ペア:

[(1, 19707788), (2, 9853894), (4, 4926947), (19, 1037252), (38, 518626), (76, 259313), (257, 76684), (514, 38342), (1009, 19532), (1028, 19171), (2018, 9766), (4036, 4883)]