18813904

素因数分解:

$2^4\times {\mathrm{271}}^1\times {\mathrm{4339}}^1$

素因数の和:4618

約数の個数: 20

約数和(自身を含む): 36594880

約数和(自身を除く): 17780976

約数列:

[1, 2, 4, 8, 16, 271, 542, 1084, 2168, 4336, 4339, 8678, 17356, 34712, 69424, 1175869, 2351738, 4703476, 9406952, 18813904]

約数ペア:

[(1, 18813904), (2, 9406952), (4, 4703476), (8, 2351738), (16, 1175869), (271, 69424), (542, 34712), (1084, 17356), (2168, 8678), (4336, 4339)]