18919004

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{7741}}^1$

素因数の和:7805

約数の個数: 24

約数和(自身を含む): 36418368

約数和(自身を除く): 17499364

約数列:

[1, 2, 4, 13, 26, 47, 52, 94, 188, 611, 1222, 2444, 7741, 15482, 30964, 100633, 201266, 363827, 402532, 727654, 1455308, 4729751, 9459502, 18919004]

約数ペア:

[(1, 18919004), (2, 9459502), (4, 4729751), (13, 1455308), (26, 727654), (47, 402532), (52, 363827), (94, 201266), (188, 100633), (611, 30964), (1222, 15482), (2444, 7741)]