18500188

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^2\times {\mathrm{1249}}^1$

素因数の和:1306

約数の個数: 36

約数和(自身を含む): 38710000

約数和(自身を除く): 20209812

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 529, 644, 1058, 1249, 2116, 2498, 3703, 4996, 7406, 8743, 14812, 17486, 28727, 34972, 57454, 114908, 201089, 402178, 660721, 804356, 1321442, 2642884, 4625047, 9250094, 18500188]

約数ペア:

[(1, 18500188), (2, 9250094), (4, 4625047), (7, 2642884), (14, 1321442), (23, 804356), (28, 660721), (46, 402178), (92, 201089), (161, 114908), (322, 57454), (529, 34972), (644, 28727), (1058, 17486), (1249, 14812), (2116, 8743), (2498, 7406), (3703, 4996)]