638631938

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{503}}^1\times {\mathrm{3943}}^1$

素因数の和:4478

約数の個数: 32

約数和(自身を含む): 1144958976

約数和(自身を除く): 506327038

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 503, 1006, 3521, 3943, 7042, 7886, 11569, 23138, 27601, 55202, 80983, 90689, 161966, 181378, 634823, 1269646, 1983329, 3966658, 13883303, 27766606, 45616567, 91233134, 319315969, 638631938]

約数ペア:

[(1, 638631938), (2, 319315969), (7, 91233134), (14, 45616567), (23, 27766606), (46, 13883303), (161, 3966658), (322, 1983329), (503, 1269646), (1006, 634823), (3521, 181378), (3943, 161966), (7042, 90689), (7886, 80983), (11569, 55202), (23138, 27601)]