21791826

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{97}}^1\times {\mathrm{1783}}^1$

素因数の和:1895

約数の個数: 48

約数和(自身を含む): 54547584

約数和(自身を除く): 32755758

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 97, 126, 194, 291, 582, 679, 873, 1358, 1746, 1783, 2037, 3566, 4074, 5349, 6111, 10698, 12222, 12481, 16047, 24962, 32094, 37443, 74886, 112329, 172951, 224658, 345902, 518853, 1037706, 1210657, 1556559, 2421314, 3113118, 3631971, 7263942, 10895913, 21791826]

約数ペア:

[(1, 21791826), (2, 10895913), (3, 7263942), (6, 3631971), (7, 3113118), (9, 2421314), (14, 1556559), (18, 1210657), (21, 1037706), (42, 518853), (63, 345902), (97, 224658), (126, 172951), (194, 112329), (291, 74886), (582, 37443), (679, 32094), (873, 24962), (1358, 16047), (1746, 12481), (1783, 12222), (2037, 10698), (3566, 6111), (4074, 5349)]