20487788

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{37}}^1\times {\mathrm{479}}^1$

素因数の和:554

約数の個数: 36

約数和(自身を含む): 39197760

約数和(自身を除く): 18709972

約数列:

[1, 2, 4, 17, 34, 37, 68, 74, 148, 289, 479, 578, 629, 958, 1156, 1258, 1916, 2516, 8143, 10693, 16286, 17723, 21386, 32572, 35446, 42772, 70892, 138431, 276862, 301291, 553724, 602582, 1205164, 5121947, 10243894, 20487788]

約数ペア:

[(1, 20487788), (2, 10243894), (4, 5121947), (17, 1205164), (34, 602582), (37, 553724), (68, 301291), (74, 276862), (148, 138431), (289, 70892), (479, 42772), (578, 35446), (629, 32572), (958, 21386), (1156, 17723), (1258, 16286), (1916, 10693), (2516, 8143)]