20820514

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1693}}^1$

素因数の和:1762

約数の個数: 32

約数和(自身を含む): 37566144

約数和(自身を除く): 16745630

約数列:

[1, 2, 11, 13, 22, 26, 43, 86, 143, 286, 473, 559, 946, 1118, 1693, 3386, 6149, 12298, 18623, 22009, 37246, 44018, 72799, 145598, 242099, 484198, 800789, 946387, 1601578, 1892774, 10410257, 20820514]

約数ペア:

[(1, 20820514), (2, 10410257), (11, 1892774), (13, 1601578), (22, 946387), (26, 800789), (43, 484198), (86, 242099), (143, 145598), (286, 72799), (473, 44018), (559, 37246), (946, 22009), (1118, 18623), (1693, 12298), (3386, 6149)]