208997802

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{20771}}^1$

素因数の和:20835

約数の個数: 48

約数和(自身を含む): 499026528

約数和(自身を除く): 290028726

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 43, 78, 86, 117, 129, 234, 258, 387, 559, 774, 1118, 1677, 3354, 5031, 10062, 20771, 41542, 62313, 124626, 186939, 270023, 373878, 540046, 810069, 893153, 1620138, 1786306, 2430207, 2679459, 4860414, 5358918, 8038377, 11610989, 16076754, 23221978, 34832967, 69665934, 104498901, 208997802]

約数ペア:

[(1, 208997802), (2, 104498901), (3, 69665934), (6, 34832967), (9, 23221978), (13, 16076754), (18, 11610989), (26, 8038377), (39, 5358918), (43, 4860414), (78, 2679459), (86, 2430207), (117, 1786306), (129, 1620138), (234, 893153), (258, 810069), (387, 540046), (559, 373878), (774, 270023), (1118, 186939), (1677, 124626), (3354, 62313), (5031, 41542), (10062, 20771)]